Skip to content The AlCrN-coated 15 64 drill bit with coolant holes is designed for high-efficiency and high-precision drilling in steel, stainless steel, alloy steel, cast iron, and other engineering materials. Made from premium solid carbide and manufactured with advanced CNC grinding technology, this 15 64 drill bit offers excellent dimensional accuracy, sharp cutting edges, and stable performance in demanding machining conditions.
The AlCrN coating provides superior heat resistance and wear protection, enabling higher cutting speeds and extended tool life. Integrated coolant holes deliver direct cooling to the cutting zone, improving chip evacuation and reducing the risk of tool failure. For customers needing a precise 15 64 drill bit size or a reliable inch-to-metric conversion option, this tool ensures consistent hole quality and repeatable results. Custom coatings, lengths, and shank styles are available upon request.
3D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB310015 | 15/64 | 5.95 | 28 | 6 | 66 |
5D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB510015 | 15/64 | 5.95 | 44 | 6 | 82 |
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 15 64 Drill Bit drawings clearly show key 15 64 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 15 64 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 15 64 drill bit is primarily used for precision drilling in metalworking applications such as automotive parts, mold and die manufacturing, machinery components, and general fabrication. It is suitable for drilling carbon steel, stainless steel, alloy steel, cast iron, and aluminum when the proper tool material and coating are selected.
The 15 64 drill bit size equals 0.234375 inches in diameter, which is approximately 5.95 mm. This size is commonly used in inch-based drawings and machining standards.
Choose with coolant holes for deep-hole drilling, high-speed CNC machining, or difficult-to-machine materials.
Choose without coolant holes when higher tool rigidity is required or when using external coolant or dry machining.
Both designs offer excellent performance when matched to the correct application.
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 15 64 drill bit without coolant holes is designed for stable and precise drilling in steel, stainless steel, alloy steel, cast iron, and other metal materials. Produced from high-quality solid carbide and ground with advanced CNC equipment, this 15 64 drill bit provides excellent dimensional accuracy, sharp cutting edges, and reliable performance in both low- and high-speed machining.
The AlCrN coating offers outstanding heat resistance and wear protection, allowing higher cutting speeds and extended tool life, especially in dry or external-coolant machining conditions. Without internal coolant holes, the tool features a stronger core structure, making it suitable for applications requiring high rigidity and good chip control. For customers seeking a dependable 15 64 drill bit size for consistent hole quality, this tool delivers stable results. Custom coatings, lengths, and shank styles are available upon request.
3D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB301015 | 15/64 | 5.95 | 28 | 6 | 66 |
5D
EDP No. | Fractional | Metric (D1, mm) | Flute Length L1 (mm) | Shank Diameter D2 (mm) | Overall Length L2 (mm) |
DB501015 | 15/64 | 5.95 | 44 | 6 | 82 |
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 15 64 Drill Bit drawings clearly show key 15 64 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 15 64 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 15 64 drill bit is primarily used for precision drilling in metalworking applications such as automotive parts, mold and die manufacturing, machinery components, and general fabrication. It is suitable for drilling carbon steel, stainless steel, alloy steel, cast iron, and aluminum when the proper tool material and coating are selected.
The 15 64 drill bit size equals 0.234375 inches in diameter, which is approximately 5.95 mm. This size is commonly used in inch-based drawings and machining standards.
Choose with coolant holes for deep-hole drilling, high-speed CNC machining, or difficult-to-machine materials.
Choose without coolant holes when higher tool rigidity is required or when using external coolant or dry machining.
Both designs offer excellent performance when matched to the correct application.
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 15 64 drill bit is widely used in general machining, mold manufacturing, automotive components, and industrial metalworking. It is suitable for drilling steel, stainless steel, alloy steel, cast iron, aluminum, and other engineering materials. From through-hole drilling to blind-hole operations, this 15 64 drill bit delivers stable cutting performance and consistent hole quality.
Compared with nearby fractional sizes, the 15 64 drill bit size offers a practical option for users searching for the closest size to 15 64 drill bit or a reliable inch-based drilling solution. With proper tool geometry and coating selection, this drill bit supports both low-speed and high-speed machining, making it a versatile choice for workshops and production lines.
Each 15 64 drill bit is manufactured from premium solid carbide and finished with advanced CNC grinding technology to ensure accurate diameter control and sharp cutting edges. Optimized flute design improves chip evacuation and reduces cutting resistance, resulting in smoother drilling and better surface finish.
High-quality coatings provide excellent wear resistance and heat stability, extending tool life even in demanding machining conditions. Whether used for continuous production or small-batch machining, this 15 64 drill bit delivers stable performance and reliable results. Custom coatings, lengths, and shank types are available to meet specific application requirements.
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 15 64 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 15 64 Drill Bit.
Each of your tungsten 15 64 Drill Bit will be sandblasted to effectively remove burrs and improve the finish.
All HNCarbide’s 15 64 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 15 64 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 15 64 drill bit is primarily used for precision drilling in metalworking applications such as automotive parts, mold and die manufacturing, machinery components, and general fabrication. It is suitable for drilling carbon steel, stainless steel, alloy steel, cast iron, and aluminum when the proper tool material and coating are selected.
The 15 64 drill bit size equals 0.234375 inches in diameter, which is approximately 5.95 mm. This size is commonly used in inch-based drawings and machining standards.
Choose with coolant holes for deep-hole drilling, high-speed CNC machining, or difficult-to-machine materials.
Choose without coolant holes when higher tool rigidity is required or when using external coolant or dry machining.
Both designs offer excellent performance when matched to the correct application.
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 15 64 drill bit is a widely used fractional-size drill bit designed for precise hole making in metalworking, manufacturing, and general industrial applications. While many users search for its size conversion or closest alternatives, the real value of a 15 64 drill bit lies in its cutting performance, tool geometry, material quality, and suitability for different machining conditions.
This article focuses on the product itself—its structure, performance advantages, material options, coating technologies, and practical applications—helping you choose the right 15 64 drill bit for your machining needs.
A 15 64 drill bit refers to a drill bit with a diameter of fifteen sixty-fourths of an inch. It belongs to the fractional inch drilling system and is commonly used when drawings or standards specify inch-based hole sizes.
In machining environments, this size is frequently applied in operations requiring controlled hole diameter, consistent roundness, and good surface finish. The 15 64 drill bit size is often used for clearance holes, pre-drilling before tapping, and precision component assembly.
Not all drill bits of the same size perform equally. A well-designed 15 64 drill bit should offer the following characteristics:
High-precision CNC grinding ensures sharp lips, accurate point angles, and consistent diameter control. This directly affects hole roundness and dimensional accuracy.
Proper flute design improves chip evacuation and reduces cutting resistance, helping prevent chip packing and tool breakage—especially in deeper holes.
A balanced core thickness provides rigidity while maintaining sufficient flute space. This is essential for stable drilling and reduced vibration.
Common material options include solid carbide, cobalt high-speed steel, and high-speed steel. For demanding production environments, solid carbide 15 64 drill bit tools provide superior wear resistance and longer service life.
Coatings play a major role in extending tool life and improving cutting performance.
TiN (Titanium Nitride): General-purpose wear resistance
TiAlN / AlTiN: High heat resistance for high-speed cutting
AlCrN: Excellent oxidation resistance and thermal stability
An AlCrN-coated 15 64 drill bit performs especially well in stainless steel, alloy steel, and high-temperature machining conditions.
Choosing the right coolant configuration depends on your application.
Direct cooling at cutting edge
Improved chip evacuation
Ideal for deep holes and high-speed CNC machining
Stronger core structure
Better rigidity
Suitable for external coolant or dry machining
Both designs offer excellent performance when matched to the right process.
The 15 64 drill bit is commonly used in:
Automotive components
Mold and die manufacturing
General metal fabrication
Machinery parts production
Maintenance and repair workshops
Suitable materials include:
Carbon steel
Stainless steel
Alloy steel
Cast iron
Aluminum
Specialized versions are available for plastics, composites, and masonry materials.
A high-quality 15 64 drill bit delivers:
Stable cutting behavior
Reduced tool wear
Smooth hole surface finish
Consistent hole diameter
Lower risk of edge chipping
These benefits translate into higher productivity and lower tooling costs.
For users working with metric systems:
15 64 drill bit in mm ≈ 5.95 mm
This value is useful when selecting close metric alternatives or programming CNC machines.
When selecting a 15 64 drill bit, consider:
Workpiece material
Required hole tolerance
Hole depth
Machine type (CNC or manual)
Cutting speed and feed rate
Matching tool material, coating, and geometry to your application ensures optimal performance.
Reliable suppliers control:
Diameter tolerance
Coating thickness
Edge preparation
Material composition
Consistent quality ensures every 15 64 drill bit performs the same from batch to batch.
The 15 64 drill bit is more than just a fractional-size tool—it is a precision cutting instrument designed for reliable and efficient drilling across a wide range of materials. By focusing on tool material, geometry, coating, and application matching, users can achieve superior hole quality, longer tool life, and better overall machining results.
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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