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This 55HRC 4 flute dovetail end mill is designed for precise dovetail slots and undercuts in medium to pre-hardened steels. Made from fine-grain carbide, this carbide dovetail end mill offers stable performance in continuous CNC production, balancing wear resistance with toughness to avoid chipping at the corners.
The 4-flute geometry and optimized relief ensure smooth cutting, reliable chip evacuation and clean dovetail sidewalls, even in alloy and tool steels. Available as a dovetail end mill cutter in common angles such as 60° to match standard fixtures and clamping systems, this tool is ideal for mold bases, positioning grooves and mechanical guide features where accurate dovetail form and long tool life are critical.
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. |
A dovetail end mill is used to machine dovetail-shaped slots and undercuts that are wider at the bottom than at the top. Typical applications include fixture locating grooves, clamping rails, slideways, and mechanical guide features on steel, stainless steel, aluminum and cast iron parts.
A 60 degree dovetail end mill follows one of the most common dovetail standards used in fixtures and locating systems. Many clamping elements and slideways are designed around a 60° included angle, so this tool size allows you to machine grooves that match standard components without custom tooling.
Yes. Dovetail end mills can machine aluminum and other non-ferrous alloys very effectively. For aluminum, we recommend sharp cutting edges, polished flutes, and sometimes uncoated or special low-friction coatings to prevent built-up edge. A carbide dovetail end mill with positive rake is ideal for high-speed aluminum machining.
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.
This 55HRC 4 flute dovetail end mill is optimized for high-efficiency machining of aluminum and other non-ferrous alloys where stable form accuracy and clean surfaces are required. Made from fine-grain carbide, this carbide dovetail end mill combines high hardness with good toughness, helping to maintain sharp edges and accurate dovetail profiles over long production runs.
The polished flutes and positive cutting geometry support smooth chip evacuation in soft, sticky materials, reducing built-up edge while improving surface finish inside the dovetail form. Available as a dovetail end mill cutter in popular angles such as 60° to match standard fixtures, it is well suited for lightweight structural components, positioning grooves and precision dovetail features in aluminum parts.
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 |
| Name/Grade | Composition | Physical Properties | Features | Applications |
|---|---|---|---|---|
| Bright | Nano-polishing layer: ultra-smooth surface formed by PVD or CVD, optionally with added Si or B elements. Metallic gloss layer: may contain highly reflective TiN (titanium nitride) or CrN (chromium nitride), giving a bright silver or golden appearance. | Hardness: 2500–3500 HV (nano-indentation). Friction coefficient: 0.1–0.2 (down to 0.05 for DLC composite coatings). Heat resistance: 600–800 °C (DLC may oxidise above 400 °C). Adhesion strength: ≥50 N (scratch test). Surface roughness: Ra < 0.02 µm (after polishing). | Mirror finish: nano-scale multilayer structure reduces surface defects and minimises the need for secondary polishing of the workpiece. Anti-adhesion: oleophobic / hydrophobic design (e.g. fluorine-containing compounds) prevents sticking of soft materials such as aluminium and copper. | Recommended materials: non-ferrous metals (aluminium, copper, magnesium alloys), high-finish steels (mould steels such as P20, NAK80; stainless steels 304, 316), composites (CFRP) and engineering plastics (PEEK, PTFE). Typical applications: precision moulds (mobile-phone housings, optical lens mould inserts), medical devices (artificial joints, dental implants), electronic components (aluminium heat sinks, copper electrodes). |
A dovetail end mill is used to machine dovetail-shaped slots and undercuts that are wider at the bottom than at the top. Typical applications include fixture locating grooves, clamping rails, slideways, and mechanical guide features on steel, stainless steel, aluminum and cast iron parts.
A 60 degree dovetail end mill follows one of the most common dovetail standards used in fixtures and locating systems. Many clamping elements and slideways are designed around a 60° included angle, so this tool size allows you to machine grooves that match standard components without custom tooling.
Yes. Dovetail end mills can machine aluminum and other non-ferrous alloys very effectively. For aluminum, we recommend sharp cutting edges, polished flutes, and sometimes uncoated or special low-friction coatings to prevent built-up edge. A carbide dovetail end mill with positive rake is ideal for high-speed aluminum machining.
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.
HNCarbide dovetail end mill tools are widely used in precision fixtures, mold bases, machine slides and automation equipment. From positioning grooves and clamping rails to linear guideways and quick-change workholding, our dovetail end mills create accurate forms that locate and lock parts with repeatable precision.
Compared with milling the profile in several steps or using hand fitting, a dedicated dovetail cutter end mill finishes the shape in fewer passes, reducing cycle time while improving surface quality inside the groove. We supply options such as 60 degree dovetail end mill designs for standard fixtures, as well as custom angles to match your own tooling standards, helping you cover different machines, materials and projects with one consistent tool family.
Each HNCarbide dovetail end mill is manufactured from fine-grain solid carbide and ground on advanced CNC equipment to ensure accurate angles, tight tolerances and smooth cutting edges. As a result, every carbide dovetail end mill delivers stable performance in steel, stainless steel, aluminum and cast iron, even under continuous production conditions.
Optimized flute geometry and relief on the dovetail end mill cutter support reliable chip evacuation and a clean finish, reducing chatter and extending tool life. Our portfolio includes standard and extended-reach versions, multi-flute designs and coated grades tailored to different hardness ranges and machining strategies. With strict inspection and ISO-based process control, HNCarbide keeps angle, diameter and runout within narrow limits, providing consistent results from batch to batch.
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 Dovetail End Mill 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 Dovetail End Mill.
Each of your tungsten Dovetail End Mill will be sandblasted to effectively remove burrs and improve the finish.
All HNCarbide’s Dovetail End Mill 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’s Dovetail End Mill 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.
A dovetail end mill is used to machine dovetail-shaped slots and undercuts that are wider at the bottom than at the top. Typical applications include fixture locating grooves, clamping rails, slideways, and mechanical guide features on steel, stainless steel, aluminum and cast iron parts.
A 60 degree dovetail end mill follows one of the most common dovetail standards used in fixtures and locating systems. Many clamping elements and slideways are designed around a 60° included angle, so this tool size allows you to machine grooves that match standard components without custom tooling.
Yes. Dovetail end mills can machine aluminum and other non-ferrous alloys very effectively. For aluminum, we recommend sharp cutting edges, polished flutes, and sometimes uncoated or special low-friction coatings to prevent built-up edge. A carbide dovetail end mill with positive rake is ideal for high-speed aluminum machining.
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.
When you need to machine reliable locating features, compact workholding, or smooth sliding components, the dovetail end mill quickly becomes one of the most valuable tools in your CNC toolbox. Instead of building complex fixtures or performing multiple operations with standard cutters, a dedicated dovetail tool allows you to generate accurate forms in a single, stable setup.
HNCarbide develops and manufactures a complete range of dovetail end mills designed for today’s production demands. From hard steel fixtures and stainless components to lightweight aluminum structures, our tools are engineered to deliver repeatable dovetail geometry, long tool life and predictable performance on different machines and materials.
A dovetail end mill is designed to cut a profile that is wider at the bottom than at the top, forming the classic dovetail shape. This profile is widely used for:
Locating and clamping rails on fixtures and pallets
Quick-change workholding systems for 3-axis and 5-axis machining
Dovetail slideways and guiding elements on machine components
Mechanical keying features that prevent parts from lifting or shifting
Unlike a standard end mill, a dovetail end mill cutter has angled flanks that match the required dovetail angle, with cutting edges ground along those sides. The tool engages from the side of the workpiece and forms the profile as it feeds along the slot. When the tool is accurately ground and correctly applied, the resulting dovetail provides strong mechanical locking and precise repeatability.
For most modern CNC environments, a carbide dovetail end mill offers clear advantages over HSS or other materials. Fine-grain carbide provides:
High hardness and wear resistance – essential for long life in steels, stainless steels and cast iron.
Stable cutting edges at higher speeds – allowing you to reduce cycle time while maintaining surface finish.
Improved rigidity – which helps control chatter in deep or narrow dovetail grooves.
When combined with advanced PVD coatings and polished flutes, our carbide tools handle both lubricated and semi-dry conditions. This makes them suitable for applications ranging from heavy steel fixtures in automotive plants to compact aluminum workholding blocks in aerospace job shops.
One of the most common standards in fixturing is the 60 degree dovetail end mill. Many commercial clamping elements and modular fixturing systems are built around a 60° included angle. By using a cutter that matches this standard, you can:
Machine dovetail rails that accept off-the-shelf clamps and stops
Create universal locating features that work across multiple fixtures
Simplify design and avoid custom hardware wherever possible
HNCarbide offers 60 degree dovetail end mills in a range of diameters, cutting depths and shank sizes to match typical fixture dimensions. Custom angles are also available for OEM systems or special slideway designs.
To deliver stable, repeatable performance, each dovetail cutter end mill in our range is produced using advanced CNC grinding and ISO-based quality control. Important design elements include:
Precision angle grinding – We tightly control the dovetail angle and flank relief so that the groove profile matches your drawing and provides consistent clamping force.
Optimized rake and clearance – Geometry is tuned for smooth cutting and strong edges, balancing sharpness with durability in demanding materials.
Polished flutes and chip space – Especially important for aluminum and stainless, polished surfaces help chips evacuate cleanly from the groove and reduce built-up edge.
Coating options – Wear-resistant coatings extend life in abrasive steels and cast irons, while low-friction coatings support high-speed cutting and dry machining where required.
These features work together to ensure that our dovetail end mills run smoothly in real production, not just on paper.
A high-quality dovetail end mill can upgrade many everyday machining tasks:
Workholding for 5-axis parts
By machining small dovetail lugs on raw stock, you can clamp complex parts securely with minimal contact area, leaving most surfaces free for full 5-axis access. The dovetail provides a positive mechanical lock, even under heavy cuts.
Modular fixtures and tombstones
Dovetail rails and grooves make it easy to reposition stops, clamps and sub-plates without drilling new holes. This flexibility is ideal for high-mix, low-volume machining where setups change frequently.
Machine components and slideways
Traditional dovetail slideways are still valued for their rigidity and damping. A precise dovetail end mill cutter can machine these features with consistent geometry so mating parts assemble smoothly and wear evenly.
Custom clamping and automation systems
Robot grippers, indexing tables and automation pallets often rely on dovetail profiles for secure positioning. Using standardized dovetail angles simplifies design and allows components to be shared between cells.
To get the best performance from your dovetail end mills, several practical guidelines are worth following:
Pre-rough the slot
Use a standard end mill or slotting cutter to remove most of the material first, leaving a small allowance. Then finish with the dovetail tool. This reduces cutting forces and protects the delicate corner edges.
Use moderate radial engagement
Avoid trying to remove the full profile in a single heavy pass, especially in hard materials. Multiple light passes with controlled step-over produce a better finish and longer tool life.
Pay attention to runout and toolholding
Because the cutting edges are located at the extreme corners of the tool, even small amounts of runout can cause unequal loading and premature wear. Use quality collets or shrink-fit holders, keep tapers clean and check runout regularly.
Adjust coolant strategy to the material
In steels and stainless steels, coolant helps manage heat and flush chips from the groove. For aluminum, a strong air blast combined with polished flutes on the carbide dovetail end mill can be very effective, sometimes with only minimal lubrication.
Ramp or step down gradually
When entering the workpiece, consider ramping down or stepping down in Z to avoid shocking the tool. This is particularly important when the dovetail is close to a shoulder or other tight feature.
Choosing the right dovetail end mill is not just about diameter and angle. Every workshop has different machines, materials and production volumes. HNCarbide works with you to match the tool to the real conditions of your shop.
We can recommend standard dovetail cutter end mill designs for common fixture rails and slideways, or engineer custom tools with special angles, extended necks, radius corners or unique shank dimensions. For new projects, our team can also provide suggested starting values for cutting speed and feed, based on your material and machine capability.
By combining carefully designed dovetail end mills with practical application support, HNCarbide helps you cut stronger fixtures, more reliable locating features and higher-quality components—while reducing setup time and overall cost per part.
When your next project calls for secure dovetail clamping or precise sliding motion, choose an HNCarbide dovetail end mill and put the strength of optimized geometry and solid carbide performance to work in your spindle.
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!
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