Skip to content The ALCrN-coated 1 1 8 drill bit with coolant holes is designed for stable and efficient drilling in CNC machining applications. This 1 1 8 drill bit features high heat resistance and excellent wear protection, ensuring long tool life under high-speed and high-load cutting conditions.
The advanced ALCrN coating reduces friction and oxidation, making this 1 1 8 drill bit for metal suitable for continuous production. Internal coolant holes provide effective cooling and smooth chip evacuation, improving hole quality and dimensional accuracy, especially in deep drilling operations.
This 1 1 8 drill bit for steel is ideal for alloy steel, stainless steel, tool steel, and cast iron. Customized options are also available for specific applications, including 1 1 8 drill bit for wood, to meet different material and machining requirements.
3D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB310008 | 1/8 | 3.175 | 20 | 6 | 66 |
5D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB510008 | 1/8 | 3.175 | 28 | 6 | 66 |
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 1 1 8 Drill Bit drawings clearly show key 1 1 8 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 1 1 8 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 1 1 8 drill bit is mainly used for precision hole drilling in industrial and workshop applications. It is suitable for metalworking, fabrication, maintenance, and selected woodworking tasks. Depending on tool material and coating, a 1 1 8 drill bit can be used for steel, aluminum, cast iron, and wood.
Yes. A properly designed 1 1 8 drill bit for metal is widely used for drilling carbon steel, alloy steel, stainless steel, and non-ferrous metals. Carbide drill bits with advanced coatings such as ALCrN offer better heat resistance, wear protection, and longer tool life in metal machining.
A 1 1 8 drill bit for steel typically features stronger cutting edges, optimized flute geometry, and higher wear resistance to handle higher cutting forces. While general metal drills can work on softer materials, steel-specific designs provide more stable performance and improved hole quality in harder materials.
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 ALCrN-coated 1 1 8 drill bit without coolant holes is optimized for applications where external cooling or dry drilling is preferred. With a solid core design, this 1 1 8 drill bit provides higher rigidity and improved stability, making it suitable for short to medium hole depths.
Without internal coolant channels, the tool structure remains compact and robust, allowing consistent performance in standard CNC and manual drilling operations. The ALCrN coating enhances surface hardness and thermal resistance, enabling this 1 1 8 drill bit for metal to maintain cutting efficiency under steady machining conditions.
This 1 1 8 drill bit for steel is widely used for carbon steel, alloy steel, and cast iron. It can also be applied to selected woodworking processes, offering a practical 1 1 8 drill bit for wood solution when compressed air or external coolant is used.
3D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB301008 | 1/8 | 3.175 | 20 | 6 | 66 |
5D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB501008 | 1/8 | 3.175 | 28 | 6 | 66 |
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 1 1 8 Drill Bit drawings clearly show key 1 1 8 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 1 1 8 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 1 1 8 drill bit is mainly used for precision hole drilling in industrial and workshop applications. It is suitable for metalworking, fabrication, maintenance, and selected woodworking tasks. Depending on tool material and coating, a 1 1 8 drill bit can be used for steel, aluminum, cast iron, and wood.
Yes. A properly designed 1 1 8 drill bit for metal is widely used for drilling carbon steel, alloy steel, stainless steel, and non-ferrous metals. Carbide drill bits with advanced coatings such as ALCrN offer better heat resistance, wear protection, and longer tool life in metal machining.
A 1 1 8 drill bit for steel typically features stronger cutting edges, optimized flute geometry, and higher wear resistance to handle higher cutting forces. While general metal drills can work on softer materials, steel-specific designs provide more stable performance and improved hole quality in harder materials.
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 HNCarbide 1 1 8 drill bit is widely used in CNC machining, fabrication, and general industrial drilling applications. Designed for precise hole making, this 1 1 8 drill bit performs reliably in steel, stainless steel, aluminum, and other engineering materials.
Whether used as a 1 1 8 drill bit for metal in production environments or for maintenance and workshop drilling, it delivers consistent hole accuracy and stable cutting behavior. Different geometries and coatings are available to match specific requirements, including 1 1 8 drill bit for steel and selected 1 1 8 drill bit for wood applications.
Each 1 1 8 drill bit from HNCarbide is manufactured with precise grinding and strict quality control to ensure reliable dimensional accuracy. Optimized flute design and cutting edges help reduce vibration, improve chip evacuation, and enhance drilling stability.
This 1 1 8 drill bit for metal is designed to maintain consistent performance during repeated drilling cycles, especially in steel and alloy materials. With balanced geometry and durable coatings, the 1 1 8 drill bit for steel supports smooth drilling, clean hole finishes, and dependable tool life in both CNC and conventional machining.
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 1 1 8 Drill Bit Needs
We Only Use unground tungsten carbide rods with HlP sintering and 100% 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 1 1 8 Drill Bit.
Each of your tungsten 1 1 8 Drill Bit will be sandblasted to effectively remove burrs and improve the finish.
All HNCarbide’s 1 1 8 Drill Bit will be monitored on WALTER HELICHEEK and ZOLLER 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 1 1 8 Drill Bit 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 1 1 8 drill bit is mainly used for precision hole drilling in industrial and workshop applications. It is suitable for metalworking, fabrication, maintenance, and selected woodworking tasks. Depending on tool material and coating, a 1 1 8 drill bit can be used for steel, aluminum, cast iron, and wood.
Yes. A properly designed 1 1 8 drill bit for metal is widely used for drilling carbon steel, alloy steel, stainless steel, and non-ferrous metals. Carbide drill bits with advanced coatings such as ALCrN offer better heat resistance, wear protection, and longer tool life in metal machining.
A 1 1 8 drill bit for steel typically features stronger cutting edges, optimized flute geometry, and higher wear resistance to handle higher cutting forces. While general metal drills can work on softer materials, steel-specific designs provide more stable performance and improved hole quality in harder materials.
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 1 1 8 drill bit is a widely used cutting tool for precision hole making in industrial and workshop environments. Known for its versatility and compatibility with standard drilling equipment, this drill size plays an important role in metalworking, fabrication, construction, and even selected woodworking applications. Choosing the right 1 1 8 drill bit can significantly improve drilling efficiency, hole quality, and overall tool life.
In this article, we explore the applications, material compatibility, key design features, and selection tips to help you choose the most suitable 1 1 8 drill bit for your machining needs.
A 1 1 8 drill bit refers to a drill with a diameter of 1/8 inch, commonly used in both CNC machining and conventional drilling operations. This size is ideal for creating small, precise holes where accuracy and surface finish are critical. Depending on the material, coating, and geometry, a 1 1 8 drill bit can be optimized for different cutting conditions and workpiece materials.
Modern manufacturing processes allow this drill size to be produced in various tool materials, including high-speed steel and solid carbide, each offering different performance advantages.
A 1 1 8 drill bit for metal is typically designed with higher hardness, improved heat resistance, and optimized cutting edges. These features help the tool withstand higher cutting forces and temperatures generated during metal drilling.
In metalworking environments, this drill size is commonly used for:
Pilot holes before larger drilling operations
Precision components in mechanical assemblies
Sheet metal and plate drilling
Maintenance and repair tasks
For improved performance, carbide or coated versions are often preferred. Advanced coatings such as ALCrN reduce friction and extend tool life, especially in continuous production.
Steel machining requires additional attention to tool strength and wear resistance. A 1 1 8 drill bit for steel is engineered to maintain edge sharpness while resisting deformation and premature wear.
Common materials drilled with this tool include:
Carbon steel
Alloy steel
Stainless steel
Tool steel
Cast iron
Optimized flute geometry helps evacuate chips efficiently, reducing heat buildup and minimizing the risk of tool breakage. In CNC environments, internal coolant options further enhance performance, particularly in deeper hole drilling.
Although primarily associated with metalworking, a 1 1 8 drill bit for wood can also be effective in woodworking applications. When used correctly, it provides clean entry and exit holes with minimal tear-out.
Woodworking applications may include:
Furniture assembly
Cabinetry
Fixtures and jigs
Decorative drilling
For wood, lower cutting speeds and proper chip clearance are recommended. In many cases, standard uncoated or specially ground versions are sufficient, especially when combined with compressed air or external dust extraction.
Not all 1 1 8 drill bit designs perform the same. Several structural features directly influence drilling results:
Carbide: Higher hardness and wear resistance, suitable for high-speed and high-volume production
HSS: Cost-effective for general-purpose drilling
Coatings improve surface hardness and reduce friction. Popular options include:
ALCrN for high-temperature resistance
TiAlN for extended tool life
Uncoated tools for softer materials
Optimized flute angles and polished surfaces help improve chip evacuation, which is critical when drilling metal and steel.
Internal coolant holes enhance heat control and chip removal, while solid tools without coolant holes offer higher rigidity for short-depth drilling.
In CNC machining, consistency and repeatability are essential. A high-quality 1 1 8 drill bit ensures stable performance across multiple drilling cycles. Precise grinding and balanced geometry reduce vibration, improve hole accuracy, and extend tool life.
For conventional drilling or manual applications, rigidity and ease of use are often prioritized. In these cases, solid-core designs without internal coolant holes can be a practical and economical choice.
When selecting a 1 1 8 drill bit, consider the following factors:
Workpiece material (metal, steel, wood)
Hole depth and tolerance requirements
Cutting speed and feed rate
Machine type (CNC or manual)
Coolant availability
Matching the tool design to the application ensures better results and lower overall machining costs.
The 1 1 8 drill bit is a small but essential tool in modern machining and fabrication. Whether used as a 1 1 8 drill bit for metal, a 1 1 8 drill bit for steel, or even a 1 1 8 drill bit for wood, proper selection and application make a measurable difference in performance and efficiency.
By understanding material requirements, tool design features, and operating conditions, manufacturers and workshops can achieve consistent drilling quality and reliable production results.
With over 20 years of experience in the cutting tool industry, we specialize in manufacturing best drill bits for steel applications. Our products are engineered for high-precision drilling in steel plate, steel beams, and steel bolts, meeting the demanding requirements of industrial and professional users.
Through long-term cooperation with global customers and continuous participation in international trade fairs, we have developed a deep understanding of what are the best drill bits for steel in real machining environments. We provide stable OEM and ODM solutions, including customized geometries, coatings, and specifications, helping customers achieve reliable drilling performance across different steel and metal applications.
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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