The 4 Flutes 55HRC Steel End Mill Cutters Flat are engineered for stable and efficient CNC milling of carbon steel, alloy steel, and pre-hardened steel up to 55HRC. Manufactured from premium carbide substrates, these end mill cutters provide a balanced combination of toughness and wear resistance for reliable performance in both roughing and finishing operations.
The optimized 4-flute geometry improves rigidity and cutting stability while maintaining controlled chip evacuation, resulting in smooth surface finish and reduced vibration. The flat-end design supports precise shoulder milling, slotting, and contouring applications.
These carbide end mill cutters are suitable for general-purpose steel machining and deliver consistent tool life and dimensional accuracy in standard CNC milling environments.
Grade HN40 is made from submicron WC powder, some speclal additlves added to optimize theproperties with good combination of hardness and toughness.
Its suitable for making drills and miling tools for machining stainless steel, tool steel and heat-resistingalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN40 | 10 | 0.8 | 14.45 | 91.8 | 1,580 | 3,600 | 11.8 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| TiSiN | Ti (titanium): main element, forms TiN nanocrystalline phase. Si (silicon): usually 6–10%, forms amorphous Si₃N₄ phase, refines grains and increases hardness. N (nitrogen): combines with Ti and Si to form a composite structure. | Colour: TiSiN coatings usually appear bronze or dark grey-bronze; exact colour depends on Si content, deposition process (such as PVD) and thickness (1–4 μm). Hardness: 34–42 GPa (≈3400–4200 HV). Friction coefficient: 0.3–0.6 (against steel). Temperature resistance: 1000–1200°C (oxidation resistance). Coating thickness: 1–5 μm (typically 2–3 μm). Deposition temperature: 200–400°C (suitable for carbide tools). | Ultra-high hardness: amorphous Si₃N₄ phase suppresses dislocation movement, giving much higher hardness than TiN (~23 GPa) and TiAlN (~35 GPa). High-temperature stability: suitable for dry cutting and high-speed machining (e.g. quenched steels HRC 60+). Anti-adhesion: reduces built-up edge when machining aluminium alloys, stainless steels and other sticky materials. | Tool coatings: drills, mills (especially suitable for PCB routers, tool life increased by 2–3 times). High-speed cutting of quenched steels, titanium alloys and high-nickel alloys. Mould strengthening: die-casting moulds and stamping dies, improving wear resistance. Industrial parts: piston rings and other high-temperature wear parts. |
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The HM Series 4 Flutes End Mill Cutters Flat are designed for reliable and efficient CNC milling of steel and general engineering materials. Built with a high-quality carbide substrate, these end mill cutters offer a well-balanced combination of strength, wear resistance, and cutting stability for everyday machining tasks.
The 4-flute geometry enhances tool rigidity and ensures smooth, controlled cutting, making the cutters suitable for both roughing and finishing operations. The flat-end design allows accurate shoulder milling, slotting, and contour machining with consistent dimensional accuracy.
As versatile carbide end mill cutters, the HM Series delivers stable tool life and predictable performance, making it an ideal choice for workshops seeking dependable milling solutions in standard CNC machining environments.
Grade HN55 is made from ultrafine close to nanometer sized WC powder, with very high wear resistancet’s suitable for making miling、 drilling tools and reamers, for high-speed miling of materials with highhardness.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN55 | 9 | 0.3 | 14.50 | 93.8 | 1,960 | 3,800 | 8.0 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| AlCrSiN | Aluminium–chromium–silicon nitride coating containing Si | Hardness: not clearly specified, but the presence of Si significantly increases hardness and toughness (estimated HV＞3500). | Si forms a denser nanostructure, improving wear resistance and high-temperature stability. | Specially designed for drills, end mills and ball-nose mills and other shank-type tools. Suitable for machining high-hardness materials (such as quenched workpieces) and materials after heat treatment. |
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The 4 Flutes 60HRC Stainless Steel End Mill Cutters Flat are developed for stable and precise CNC milling of stainless steel and high-strength alloy materials up to 60HRC. Manufactured from premium carbide substrates, these end mill cutters deliver excellent wear resistance, thermal stability, and cutting reliability under demanding machining conditions.
The optimized 4-flute geometry provides improved rigidity and smooth chip evacuation, helping to reduce vibration and enhance surface finish during both roughing and finishing operations. The flat-end design enables accurate shoulder milling, slotting, and contouring with consistent dimensional control.
These carbide end mill cutters are well suited for stainless steel machining, offering dependable tool life and stable performance in high-speed CNC milling environments.
Grade HN44F is made from submicron WC powder, some special additives added.
It’s suitable for making drills and end mills, especially for machining steel,Al-based alloys and Ti-basedalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN44F | 12 | 0.4 | 14.15 | 92.6 | 1,720 | 4,200 | 9.6 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| CrAlTiSiN | Cr: 12–16% Al: 20–24% Ti: 4–8% Si: 6–10% N: 48–52% | Ultra-high hardness: hardness can reach 38–40 GPa (e.g. CrAlSiN/TiAlSiN modulated coatings), much higher than traditional TiN or CrN. Si forms amorphous Si₃N₄, which suppresses dislocation movement and improves wear resistance. Excellent high-temperature performance: oxidation temperature up to 1000–1100°C, suitable for high-speed dry cutting. At high temperature, a dense Al₂O₃ and Cr₂O₃ oxide layer forms on the surface, slowing further oxidation. Low friction coefficient: about 0.375–0.675, depending on modulation period and Si content. Strong adhesion: with transition-layer design (such as AlCrTi alloy layer), critical load can exceed 18 N (scratch test). | High-speed cutting tools: such as mills and drills, suitable for hardened steels, titanium alloys and other difficult-to-machine materials. Mould surface reinforcement: improves wear resistance and thermal-fatigue resistance of stamping dies. Aerospace components: such as turbine-blade coatings, resisting high-temperature oxidation and particle erosion. |
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The 4 Flutes 65HRC Blue Nano Coated End Mill Cutters Flat are designed for high-performance CNC milling of hardened steel and difficult-to-machine materials up to 65HRC. Produced from ultra-fine grain carbide substrates and enhanced with a blue nano coating, these end mill cutters offer superior wear resistance, heat stability, and extended tool life in demanding cutting conditions.
The 4-flute geometry improves rigidity and cutting stability, while the optimized flute design supports controlled chip evacuation and reduced vibration. The flat-end profile ensures precise shoulder milling, slotting, and contour machining with excellent dimensional accuracy.
These solid carbide end mill cutters are ideal for high-speed and high-precision machining, delivering consistent performance in hardened material applications.
Grade HN44F is made from submicron WC powder, some special additives added.
It’s suitable for making drills and end mills, especially for machining steel,Al-based alloys and Ti-basedalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN44F | 12 | 0.4 | 14.15 | 92.6 | 1,720 | 4,200 | 9.6 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| Nano-Blue | Blue surface layer: may contain AlCrN (aluminium-chromium nitride) or TiSiN (titanium–silicon nitride); the blue colour comes from nano-structured interference. Nanomultilayer structure: alternating layers such as TiN/AlN (individual layer thickness ＜50 nm) to increase hardness and thermal stability. | Hardness: 3000–4000 HV (nano-indentation). Friction coefficient: 0.1–0.3 (lower when combined with DLC). Heat resistance: stable up to 1000°C (oxidation starts above 800°C). Adhesion strength: ≥70 N (critical load in scratch test). Surface roughness: Ra ＜0.05 μm (after polishing). | Blue appearance: achieved by nano-optical thin-film design, and can serve as wear indicator (colour change shows coating loss). Self-lubricating: some Si- or WC-containing nanocoatings can form a silica-based lubricating layer at high temperature. | Recommended workpiece materials High-hardness steels (HRC＞50, such as mould steel, bearing steel). High-temperature alloys (nickel-based / titanium alloys, relying on coating heat resistance). Non-ferrous metals (aluminium and copper alloys, requiring low-friction coating to prevent built-up edge). Composites (CFRP, avoiding adverse reactions between coating and fibres). Typical application fields Aerospace: machining turbine-blade dovetails, milling titanium-alloy structural parts. Automotive moulds: high-precision cavity milling, balancing efficiency and surface quality. Medical devices: micro-machining of cobalt-chromium artificial joints. |
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
Grade HN40 is made from submicron WC powder, some speclal additlves added to optimize theproperties with good combination of hardness and toughness.
Its suitable for making drills and miling tools for machining stainless steel, tool steel and heat-resistingalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN40 | 10 | 0.8 | 14.45 | 91.8 | 1,580 | 3,600 | 11.8 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| ALCRN | Al: 18–32% Cr: 10–25% N: 45–57% | Hardness: 2800–3200 HV (≈30–32 GPa) Thickness: 1–5 μm (typically 3–4 μm in applications) Oxidation temperature: 1000–1100°C (short-term up to 1100°C) Deposition temperature: ＜500°C (suitable for HSS and carbide substrates) | Red hardness: maintains hardness even at 1100°C, better than TiAlN (whose hardness drops above about 900°C). Adhesion: critical load up to 40 N (with optimized process). Wear resistance: suitable for high-speed cutting and dry machining, especially effective on stainless steels and alloy steels. | Cutting tools: end mills, gear cutters, drills (e.g. Balinit Alcorna series). Moulds: aluminium die-casting moulds, stamping tools. Industrial parts: piston rings, high-temperature wear-resistant parts (combined with suitable interlayer design). |
Our ball end mill drawings clearly show key ball end mill dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right ball end mill sizes for your CNC setup and machining depth before ordering.
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The 65HRC Blue Nano Coated 4 Flute Ball End Mill Cutters are engineered for high-precision CNC milling of hardened steel and complex contoured surfaces up to 65HRC. Manufactured from ultra-fine grain carbide substrates and enhanced with a blue nano coating, these end mill cutters deliver excellent wear resistance, heat stability, and extended tool life under high-speed machining conditions.
The 4-flute design increases tool rigidity and cutting stability, while the ball nose geometry enables smooth profiling, 3D surface machining, and accurate radius transitions. Optimized flute geometry supports controlled chip evacuation and reduced vibration, resulting in improved surface finish and dimensional accuracy.
These solid carbide end mill cutters are ideal for mold, die, and hardened material applications requiring consistent performance and fine surface quality.
Grade HN44F is made from submicron WC powder, some special additives added.
It’s suitable for making drills and end mills, especially for machining steel,Al-based alloys and Ti-basedalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN44F | 12 | 0.4 | 14.15 | 92.6 | 1,720 | 4,200 | 9.6 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| Nano-Blue | Blue surface layer: may contain AlCrN (aluminium-chromium nitride) or TiSiN (titanium–silicon nitride); the blue colour comes from nano-structured interference. Nanomultilayer structure: alternating layers such as TiN/AlN (individual layer thickness ＜50 nm) to increase hardness and thermal stability. | Hardness: 3000–4000 HV (nano-indentation). Friction coefficient: 0.1–0.3 (lower when combined with DLC). Heat resistance: stable up to 1000°C (oxidation starts above 800°C). Adhesion strength: ≥70 N (critical load in scratch test). Surface roughness: Ra ＜0.05 μm (after polishing). | Blue appearance: achieved by nano-optical thin-film design, and can serve as wear indicator (colour change shows coating loss). Self-lubricating: some Si- or WC-containing nanocoatings can form a silica-based lubricating layer at high temperature. | Recommended workpiece materials High-hardness steels (HRC＞50, such as mould steel, bearing steel). High-temperature alloys (nickel-based / titanium alloys, relying on coating heat resistance). Non-ferrous metals (aluminium and copper alloys, requiring low-friction coating to prevent built-up edge). Composites (CFRP, avoiding adverse reactions between coating and fibres). Typical application fields Aerospace: machining turbine-blade dovetails, milling titanium-alloy structural parts. Automotive moulds: high-precision cavity milling, balancing efficiency and surface quality. Medical devices: micro-machining of cobalt-chromium artificial joints. |
Our ball end mill drawings clearly show key ball end mill dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right ball end mill sizes for your CNC setup and machining depth before ordering.
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The HRC60 4 Flute Corner Radius End Mill Cutters for Stainless Steel are designed for stable and precise CNC milling of stainless steel and high-strength alloys up to 60HRC. Manufactured from premium carbide substrates, these end mill cutters provide excellent wear resistance, thermal stability, and cutting reliability in demanding machining environments.
The 4-flute geometry enhances rigidity and cutting stability, while the corner radius design strengthens the cutting edge and reduces chipping, extending tool life during both roughing and finishing operations. Optimized flute geometry supports smooth chip evacuation and improved surface finish.
These carbide end mill cutters are ideal for stainless steel machining, delivering consistent dimensional accuracy and reliable performance in high-speed CNC milling applications.
Grade HN44F is made from submicron WC powder, some special additives added.
It’s suitable for making drills and end mills, especially for machining steel,Al-based alloys and Ti-basedalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN44F | 12 | 0.4 | 14.15 | 92.6 | 1,720 | 4,200 | 9.6 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| TiSiN | Ti (titanium): main element, forms TiN nanocrystalline phase. Si (silicon): usually 6–10%, forms amorphous Si₃N₄ phase, refines grains and increases hardness. N (nitrogen): combines with Ti and Si to form a composite structure. | Colour: TiSiN coatings usually appear bronze or dark grey-bronze; exact colour depends on Si content, deposition process (such as PVD) and thickness (1–4 μm). Hardness: 34–42 GPa (≈3400–4200 HV). Friction coefficient: 0.3–0.6 (against steel). Temperature resistance: 1000–1200°C (oxidation resistance). Coating thickness: 1–5 μm (typically 2–3 μm). Deposition temperature: 200–400°C (suitable for carbide tools). | Ultra-high hardness: amorphous Si₃N₄ phase suppresses dislocation movement, giving much higher hardness than TiN (~23 GPa) and TiAlN (~35 GPa). High-temperature stability: suitable for dry cutting and high-speed machining (e.g. quenched steels HRC 60+). Anti-adhesion: reduces built-up edge when machining aluminium alloys, stainless steels and other sticky materials. | Tool coatings: drills, mills (especially suitable for PCB routers, tool life increased by 2–3 times). High-speed cutting of quenched steels, titanium alloys and high-nickel alloys. Mould strengthening: die-casting moulds and stamping dies, improving wear resistance. Industrial parts: piston rings and other high-temperature wear parts. |
Our Corner Radius End Mill drawings clearly show key Corner Radius End Mill dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right Corner Radius End Mill sizes for your CNC setup and machining depth before ordering.
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
The HRC65 4 Flute Blue Nano Coated Corner Radius End Mill Cutters are engineered for high-performance CNC milling of hardened steel and difficult-to-machine materials up to 65HRC. Produced from ultra-fine grain carbide substrates and enhanced with a blue nano coating, these end mill cutters offer superior wear resistance, heat stability, and extended tool life under high-speed cutting conditions.
The 4-flute geometry provides excellent rigidity and cutting stability, while the corner radius design reinforces the cutting edge to reduce chipping and improve tool durability. Optimized flute geometry supports smooth chip evacuation and enhanced surface finish.
These solid carbide end mill cutters are ideal for precision machining applications requiring stable performance, accurate profiles, and long tool life in hardened material environments.
Grade HN44F is made from submicron WC powder, some special additives added.
It’s suitable for making drills and end mills, especially for machining steel,Al-based alloys and Ti-basedalloys.
| Grade | Cobalt content % | Grain size | Density g/cm³ | Hardness HRA | Hardness HV30 | MPa Transverse rupture strength | MPa ·m1/2 Fracture toughness MPa ·m1/2 |
|---|---|---|---|---|---|---|---|
| HN44F | 12 | 0.4 | 14.15 | 92.6 | 1,720 | 4,200 | 9.6 |
| Scientific name | Composition | Physical properties | Features | Typical applications |
|---|---|---|---|---|
| Nano-Blue | Blue surface layer: may contain AlCrN (aluminium-chromium nitride) or TiSiN (titanium–silicon nitride); the blue colour comes from nano-structured interference. Nanomultilayer structure: alternating layers such as TiN/AlN (individual layer thickness ＜50 nm) to increase hardness and thermal stability. | Hardness: 3000–4000 HV (nano-indentation). Friction coefficient: 0.1–0.3 (lower when combined with DLC). Heat resistance: stable up to 1000°C (oxidation starts above 800°C). Adhesion strength: ≥70 N (critical load in scratch test). Surface roughness: Ra ＜0.05 μm (after polishing). | Blue appearance: achieved by nano-optical thin-film design, and can serve as wear indicator (colour change shows coating loss). Self-lubricating: some Si- or WC-containing nanocoatings can form a silica-based lubricating layer at high temperature. | Recommended workpiece materials High-hardness steels (HRC＞50, such as mould steel, bearing steel). High-temperature alloys (nickel-based / titanium alloys, relying on coating heat resistance). Non-ferrous metals (aluminium and copper alloys, requiring low-friction coating to prevent built-up edge). Composites (CFRP, avoiding adverse reactions between coating and fibres). Typical application fields Aerospace: machining turbine-blade dovetails, milling titanium-alloy structural parts. Automotive moulds: high-precision cavity milling, balancing efficiency and surface quality. Medical devices: micro-machining of cobalt-chromium artificial joints. |
Our Corner Radius End Mill drawings clearly show key Corner Radius End Mill dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right Corner Radius End Mill sizes for your CNC setup and machining depth before ordering.
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
We Are Commited To Providing High-Quality, Customized solutions At An Affordable price While Also Prioritizing sustainability And ExcellentCustomer Service, These Qualities Make Us A Great choice For Your End Mill Cutters Needs
We Only Use unground tungsten carbide rods with HlP sintering and100% virgin material. Our grade includes lsO K05 to K40, frommachining carbon steel to aluminium, non-ferrous metals andtitanium or we develop grade for your applications.
As a HNCarbide customer, you can enjoy five-axis high-precisiongrinding machines from Australia’s ANCA or Germany’s Walter. Themodern workshop with constant temperature and humidity ensuresthe accuracy of each End Mill Cutters.
Each of your tungsten steel End Mill Cutters will be sandblasted toeffectively remove burrs and improve the finish.
All HNCarbide’s End Mill Cutters will be monitored on WALTER HELICHEEK andZOLLER GENlUS 3 to ensure that every dimension is qualified. We arecommitted to controlling the tolerance within 3 UM.
At HNCarbide, every shipment is meticulously packaged to ensure your tools arrive intact.
Each HNCarbide Solid End Mill Cutters is individually placed in a shock-resistant protective case, labeled with complete specifications, and sealed in moisture-proof packaging material before being boxed.
Large-volume orders are reinforced with double-wall cardboard boxes or wooden crates to maximize safety during international shipping.
We collaborate with reliable logistics partners to ensure goods are delivered quickly and securely to their destination via air freight, sea freight, or express courier.
End mill cutters are cutting tools used in milling machines and CNC machining centers to remove material through side milling, slotting, contouring, and profiling. They are commonly applied in machining steel, stainless steel, aluminum, titanium, and other engineering materials, producing flat surfaces, pockets, slots, and complex 3D shapes.
The main difference lies in rigidity and heat resistance. Carbide end mill cutters maintain cutting edge strength at higher speeds and temperatures, making them suitable for CNC machining and harder materials. HSS end mill cutters are more forgiving and are often used at lower speeds or on less rigid machines. For most modern CNC applications, solid carbide end mill cutters provide better tool life and surface finish.
Four-flute designs increase core strength and cutting stability. 4-flute end mill cutters are widely used in steel and stainless steel machining because they deliver smoother cutting action, reduced vibration, and improved surface finish when radial engagement is controlled. They are especially effective for side milling and finishing operations.
Yes. We can produce non-standard tools according to your drawings, samples or machining requirements (material, coating, size, tolerance and application). Our engineers will evaluate and provide a quotation and lead time.
For serious buyers and distributors, we can offer free standard samples if in stock. Usually you only need to cover the freight cost. For customized tools, a sample fee may apply, which can be refunded or deducted in bulk orders.
Yes.
Regional or customer protection based on sales targets, avoiding price wars among our partners.
Catalogs, brochures, product photos, technical data sheets, online materials.
For key partners, joint promotion, exhibitions and digital marketing support.
Safety stock for fast-moving items and forecast-based production.
Priority production and regular shipments to reduce stock-out risk.
Clear quality warranty policy, quick response to claims.
Replacement, credit or other solutions after confirmation of issues.
Tool selection and cutting parameter advice.
Problem analysis for different materials and machines.
Online training, documents, and when possible, on-site support for key accounts.
Choosing the right end mill cutters is a key factor in achieving stable machining, good surface finish, and predictable tool life. While price and brand are often discussed, real performance depends on how well the cutter material, geometry, and application match the machining conditions. This article explains how different types of end mill cutters perform in real CNC environments and how to select the right option for steel, stainless steel, aluminum, and titanium.
Carbide end mill cutters are widely used in modern CNC machining due to their high rigidity and excellent heat resistance. Compared with HSS tools, carbide maintains cutting edge strength at higher speeds, making it suitable for stainless steel, alloy steel, and hardened materials.
Solid carbide end mill cutters are especially effective in applications where dimensional accuracy, surface finish, and tool life consistency are critical. They are commonly used in high-speed milling and finishing operations.
HSS end mill cutters remain useful in lower-speed machining, manual milling machines, or applications where cutting conditions are less stable. HSS is more forgiving than carbide and less sensitive to vibration, which can be beneficial in certain setups.
Cobalt end mill cutters (HSS-Co) offer improved heat resistance compared to standard HSS. They are often selected for tougher steels where regular HSS tools struggle, although they still operate at lower speeds than carbide tools.
Single flute end mill cutters are commonly used for aluminum and non-ferrous materials. With a large chip space, they allow efficient chip evacuation and reduce the risk of chip re-cutting. This design helps improve surface finish and reduces built-up edge, especially during deep slotting or high-feed milling.
Four-flute designs are widely used in steel and stainless steel machining. By increasing core strength and rigidity, 4-flute end mill cutters provide better cutting stability and improved surface finish in side milling and contouring operations. They are typically preferred when full-slotting is not required and radial engagement is controlled.
Stainless steel presents challenges such as work hardening and heat concentration. In these conditions, carbide end mill cutters are usually more effective than HSS tools. Their ability to maintain edge strength at elevated temperatures helps reduce premature wear and edge chipping.
For stainless steel machining, stable cutting conditions, proper chip load, and controlled engagement are essential. End mill cutters designed for stainless steel often focus on balanced geometry and smooth chip evacuation to minimize vibration and thermal damage.
Titanium alloys generate high cutting temperatures and place significant stress on the cutting edge. For these materials, solid carbide end mill cutters are generally the preferred choice due to their rigidity and heat resistance.
When evaluating what are the best end mill cutters for machining titanium, stability and consistency are more important than extreme sharpness. Tools with strong cutting edges and controlled engagement strategies help reduce edge chipping and improve tool life in titanium applications.
End mill gear cutters are designed for specific gear machining operations. Their selection depends on gear geometry, cutting method, and machine capability. Precision geometry and repeatable quality are critical factors for maintaining accuracy in gear-related milling tasks.
Sharpening end mill cutters can extend tool life when performed correctly. Regrinding is most effective for larger-diameter tools where geometry and runout can be well controlled. However, repeated sharpening reduces tool diameter and may alter cutting geometry, which can affect accuracy and surface finish.
For applications requiring tight tolerances or complex profiles, new tools are often preferred over reground cutters.
When sourcing end mill cutters for sale, buyers often focus on availability and range. For long-term production needs, wholesale end mill cutters supply emphasizes consistency, traceability, and stable quality across batches.
Important factors include dimensional tolerance control, runout consistency, and reliable manufacturing processes rather than short-term cost savings.
The term China end mill cutters covers a wide range of manufacturing quality levels. Effective evaluation focuses on process control, inspection capability, and long-term consistency. Reliable suppliers provide stable geometry, documented inspection procedures, and repeatable performance across multiple production batches.
Selecting the right end mill cutters requires balancing material, geometry, and machining conditions rather than relying on a single specification. Carbide tools dominate high-speed and high-precision CNC machining, while HSS and cobalt tools still serve valuable roles in specific applications. By understanding flute design, material compatibility, and cutting behavior, machinists can achieve better surface finish, longer tool life, and more stable machining results across a wide range of materials.
Before you go, please note that we offer the most up-to-date industry research reports and the most comprehensive product catalogs, so please contact us if you are interested!
Before you go, please note that we offer the most up-to-date industry research reports and the most comprehensive product catalogs, so please contact us if you are interested!
