Skip to content This 3 16 drill bit with internal coolant channels is engineered for high-efficiency drilling in demanding metal applications. Designed to deliver stable cutting performance, it is especially suitable as a 3 16 drill bit for stainless steel and 3 16 drill bit for hardened steel, where heat control and chip evacuation are critical.
The internal coolant design ensures direct cooling at the cutting edge, reducing thermal stress and extending tool life. Combined with advanced TiXCo³ coating, this 3 16 drill bit for metal offers excellent wear resistance, oxidation stability, and reduced friction during high-speed CNC drilling operations.
Manufactured with precise tolerance control, the 3 16 drill bit size guarantees accurate hole dimensions and consistent surface finish. For deep-hole requirements, long 3 16 drill bit and extra long 3 16 drill bit versions are available upon request. Metric reference for international users is supported, with clear conversion from 3 16 drill bit in mm for CNC programming and tool selection.
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-3D-CD-0040-D6 | 4 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0041 | 4.1 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0042 | 4.2 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0043 | 4.3 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0044 | 4.4 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0045 | 4.5 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0046 | 4.6 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0047 | 4.7 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0048 | 4.8 | 28 | D6 | 66 | HA | HB |
| HN-3D-CD-0049 | 4.9 | 28 | D6 | 66 | HA | HB |
| HN-3D-CD-0050 | 5 | 28 | D6 | 66 | HA | HB |
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-5D-CD-0040-D6 | 4 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0041 | 4.1 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0042 | 4.2 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0043 | 4.3 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0044 | 4.4 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0045 | 4.5 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0046 | 4.6 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0047 | 4.7 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0048 | 4.8 | 44 | D6 | 82 | HA | HB |
| HN-5D-CD-0049 | 4.9 | 44 | D6 | 82 | HA | HB |
| HN-5D-CD-0050 | 5 | 44 | D6 | 82 | HA | HB |
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 |
|---|---|---|---|---|
| TiXCo3 | Advanced nanocomposite multilayer PVD coating based on Ti, Al, Cr and Si; usually built with a TiN or CrTiN adhesion layer, an AlTi(Si)N core and an extremely hard TiSiN nano-composite top layer. Copper-coloured coating designed specifically for hard-machining tools such as solid carbide drills. | Nano-hardness: 42–44 GPa (≈4300–4500 HV). Coefficient of friction: ~0.4 (PoD test, room temperature, 50 % humidity). Coating thickness: typically 1–4 µm. Maximum service temperature up to about 1,000–1,100 °C, giving excellent thermal stability and oxidation resistance for high-speed drilling in hard materials. | Copper appearance; delivers very high surface quality of the hole and extremely high wear resistance. Our hardest nanocomposite coating, optimized for hard machining and finishing operations in drilling, milling and reaming at very high cutting speeds. Suitable for dry or near-dry machining and for difficult-to-cut, abrasive alloys where long, stable tool life is required. | Recommended workpiece materials: hardened steels (up to ~60–64 HRC), stainless steels, tool steels, nickel-based superalloys, cast irons and other hard or abrasive metals. Typical application fields for drills: high-precision deep-hole and high-speed production drilling of dies and moulds, power-train and transmission components, aerospace turbine and structural parts, and other hard-machining operations demanding tight tolerances and excellent hole finish. |
Our 3 16 Drill Bit drawings clearly show key 3 16 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 3 16 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 3 16 drill bit in mm measures approximately 4.76 mm in diameter. This conversion is commonly referenced as 3 16 drill bit to mm and is widely used for CNC programming, metric drawings, and international machining standards.
A high-quality 3 16 drill bit for metal can be used for carbon steel, alloy steel, aluminum, and non-ferrous metals. With proper carbide material and coating, a 3 16 drill bit for stainless steel and even 3 16 drill bit for hardened steel can achieve stable performance and long tool life.
The 9 16 drill bit to mm conversion is approximately 14.29 mm. This reference is important for users working with metric drawings or CNC programs while using inch-size tooling.
Yes. A carbide 3 16 drill bit for stainless steel with wear-resistant coating and proper coolant supply is highly effective. Internal or external coolant helps reduce heat buildup and prevents work hardening, which is critical when drilling stainless steel.
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 3 16 drill bit with internal coolant channels is designed for high-performance drilling in steel, stainless steel, and alloy materials. As a reliable 3 16 drill bit for metal, it delivers excellent cutting stability, precise hole accuracy, and consistent results in high-speed CNC machining.
The internal coolant system directs coolant precisely to the cutting edge, improving chip evacuation and reducing heat buildup during deep-hole operations. Combined with advanced ALCRONA coating, this 3 16 drill bit for stainless steel provides superior wear resistance, enhanced hardness, and outstanding thermal stability, making it suitable for continuous and high-feed drilling.
With strict dimensional control, the 3 16 drill bit size ensures accurate hole diameter and improved surface finish. Long 3 16 drill bit and extra long 3 16 drill bit options are available for extended reach and deep drilling requirements. Metric reference is also supported, allowing easy conversion from 3 16 drill bit in mm for global CNC applications.
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-3D-CD-0040-D6-A | 4 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0041-A | 4.1 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0042-A | 4.2 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0043-A | 4.3 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0044-A | 4.4 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0045-A | 4.5 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0046-A | 4.6 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0047-A | 4.7 | 24 | D6 | 66 | HA | HB |
| HN-3D-CD-0048-A | 4.8 | 28 | D6 | 66 | HA | HB |
| HN-3D-CD-0049-A | 4.9 | 28 | D6 | 66 | HA | HB |
| HN-3D-CD-0050-A | 5 | 28 | D6 | 66 | HA | HB |
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-5D-CD-0040-D6-A | 4 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0041-A | 4.1 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0042-A | 4.2 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0043-A | 4.3 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0044-A | 4.4 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0045-A | 4.5 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0046-A | 4.6 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0047-A | 4.7 | 36 | D6 | 74 | HA | HB |
| HN-5D-CD-0048-A | 4.8 | 44 | D6 | 82 | HA | HB |
| HN-5D-CD-0049-A | 4.9 | 44 | D6 | 82 | HA | HB |
| HN-5D-CD-0050-A | 5 | 44 | D6 | 82 | HA | HB |
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 |
|---|---|---|---|---|
| ALCRONA (AlCrN) | Aluminium–chromium nitride (AlCrN) PVD coating, titanium-free; dense, fine-grained structure with high Al/Cr ratio to improve hot hardness and oxidation resistance. Typically deposited as a multi-layer or graded layer on solid carbide or HSS substrates. | Hardness: approx. 2800–3200 HV (nano-indentation). Coefficient of friction: ~0.3–0.35 in dry steel cutting. Heat resistance: stable at elevated temperatures, operating temperature up to about 1,000–1,100 °C with excellent hot hardness and oxidation resistance. High adhesion strength to tool substrate; low tendency to micro-chipping at the cutting edge. | Dark grey to blue-grey appearance. Titanium-free universal high-performance coating for heavy mechanical loads and high cutting speeds. Very high wear resistance under both low-speed / high-load and high-speed / dry-cut conditions. Good performance in dry or minimum-lubrication drilling, maintaining sharp cutting edges and consistent hole quality over long tool life. | Recommended workpiece materials: alloy and carbon steels, pre-hardened and hardened steels, cast irons and high-tensile structural steels. Especially suitable for high-performance carbide or HSS drills used in dry or semi-dry machining. Typical application fields: automotive power-train parts, mould & die holes, general engineering components and high-speed production drilling where long tool life and thermal stability are critical. |
Our 3 16 Drill Bit drawings clearly show key 3 16 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 3 16 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 3 16 drill bit in mm measures approximately 4.76 mm in diameter. This conversion is commonly referenced as 3 16 drill bit to mm and is widely used for CNC programming, metric drawings, and international machining standards.
A high-quality 3 16 drill bit for metal can be used for carbon steel, alloy steel, aluminum, and non-ferrous metals. With proper carbide material and coating, a 3 16 drill bit for stainless steel and even 3 16 drill bit for hardened steel can achieve stable performance and long tool life.
The 9 16 drill bit to mm conversion is approximately 14.29 mm. This reference is important for users working with metric drawings or CNC programs while using inch-size tooling.
Yes. A carbide 3 16 drill bit for stainless steel with wear-resistant coating and proper coolant supply is highly effective. Internal or external coolant helps reduce heat buildup and prevents work hardening, which is critical when drilling stainless steel.
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 3 16 drill bit with external coolant is designed for stable and efficient drilling in general metalworking applications. As a versatile 3 16 drill bit for metal, it provides reliable performance in steel, stainless steel, and alloy materials where external cooling systems are commonly used.
The external coolant supply effectively removes chips and reduces cutting temperature at the tool-workpiece interface. Paired with advanced TiXCo³ coating, this 3 16 drill bit for stainless steel offers excellent wear resistance, reduced friction, and improved tool life under continuous drilling conditions. It is also suitable as a 3 16 drill bit for hardened steel in moderate cutting parameters.
Each 3 16 drill bit size is manufactured with high dimensional accuracy to ensure consistent hole quality and smooth surface finish. For extended reach, long 3 16 drill bit and extra long 3 16 drill bit options are available to support deeper drilling operations. Metric conversion from 3 16 drill bit in mm is clearly defined for international CNC programming and tool selection.
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-3D-TD-0040-D6 | 4 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0041 | 4.1 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0042 | 4.2 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0043 | 4.3 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0044 | 4.4 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0045 | 4.5 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0046 | 4.6 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0047 | 4.7 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0048 | 4.8 | 28 | 6 | 66 | HA | HB |
| HN-3D-TD-0049 | 4.9 | 28 | 6 | 66 | HA | HB |
| HN-3D-TD-0050 | 5 | 28 | 6 | 66 | HA | HB |
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-5D-TD-0040-D6 | 4 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0041 | 4.1 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0042 | 4.2 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0043 | 4.3 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0044 | 4.4 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0045 | 4.5 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0046 | 4.6 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0047 | 4.7 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0048 | 4.8 | 44 | 6 | 82 | HA | HB |
| HN-5D-TD-0049 | 4.9 | 44 | 6 | 82 | HA | HB |
| HN-5D-TD-0050 | 5 | 44 | 6 | 82 | HA | HB |
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 |
|---|---|---|---|---|
| TiXCo3 | Advanced nanocomposite multilayer PVD coating based on Ti, Al, Cr and Si; usually built with a TiN or CrTiN adhesion layer, an AlTi(Si)N core and an extremely hard TiSiN nano-composite top layer. Copper-coloured coating designed specifically for hard-machining tools such as solid carbide drills. | Nano-hardness: 42–44 GPa (≈4300–4500 HV). Coefficient of friction: ~0.4 (PoD test, room temperature, 50 % humidity). Coating thickness: typically 1–4 µm. Maximum service temperature up to about 1,000–1,100 °C, giving excellent thermal stability and oxidation resistance for high-speed drilling in hard materials. | Copper appearance; delivers very high surface quality of the hole and extremely high wear resistance. Our hardest nanocomposite coating, optimized for hard machining and finishing operations in drilling, milling and reaming at very high cutting speeds. Suitable for dry or near-dry machining and for difficult-to-cut, abrasive alloys where long, stable tool life is required. | Recommended workpiece materials: hardened steels (up to ~60–64 HRC), stainless steels, tool steels, nickel-based superalloys, cast irons and other hard or abrasive metals. Typical application fields for drills: high-precision deep-hole and high-speed production drilling of dies and moulds, power-train and transmission components, aerospace turbine and structural parts, and other hard-machining operations demanding tight tolerances and excellent hole finish. |
Our 3 16 Drill Bit drawings clearly show key 3 16 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 3 16 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 3 16 drill bit in mm measures approximately 4.76 mm in diameter. This conversion is commonly referenced as 3 16 drill bit to mm and is widely used for CNC programming, metric drawings, and international machining standards.
A high-quality 3 16 drill bit for metal can be used for carbon steel, alloy steel, aluminum, and non-ferrous metals. With proper carbide material and coating, a 3 16 drill bit for stainless steel and even 3 16 drill bit for hardened steel can achieve stable performance and long tool life.
The 9 16 drill bit to mm conversion is approximately 14.29 mm. This reference is important for users working with metric drawings or CNC programs while using inch-size tooling.
Yes. A carbide 3 16 drill bit for stainless steel with wear-resistant coating and proper coolant supply is highly effective. Internal or external coolant helps reduce heat buildup and prevents work hardening, which is critical when drilling stainless steel.
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 3 16 drill bit with external coolant is developed for efficient and stable drilling in a wide range of metalworking applications. As a dependable 3 16 drill bit for metal, it delivers consistent performance in steel, stainless steel, and alloy materials under standard CNC machining conditions.
The external coolant flow assists in chip evacuation and temperature control at the cutting zone. Combined with advanced ALCRONA coating, this 3 16 drill bit for stainless steel offers excellent wear resistance, high hardness, and strong thermal stability, helping to extend tool life and maintain cutting accuracy during continuous drilling operations.
Manufactured with precise tolerance control, the 3 16 drill bit size ensures accurate hole diameter and improved surface finish. Long 3 16 drill bit and extra long 3 16 drill bit options are available to support deeper drilling requirements. For global users, clear reference from 3 16 drill bit in mm simplifies CNC programming and tool selection.
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-3D-TD-0040-D6-A | 4 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0041-A | 4.1 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0042-A | 4.2 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0043-A | 4.3 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0044-A | 4.4 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0045-A | 4.5 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0046-A | 4.6 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0047-A | 4.7 | 24 | 6 | 66 | HA | HB |
| HN-3D-TD-0048-A | 4.8 | 28 | 6 | 66 | HA | HB |
| HN-3D-TD-0049-A | 4.9 | 28 | 6 | 66 | HA | HB |
| HN-3D-TD-0050-A | 5 | 28 | 6 | 66 | HA | HB |
| Order Number | d | l | D | L | HA | HB |
|---|---|---|---|---|---|---|
| HN-5D-TD-0040-D6-A | 4 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0041-A | 4.1 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0042-A | 4.2 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0043-A | 4.3 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0044-A | 4.4 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0045-A | 4.5 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0046-A | 4.6 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0047-A | 4.7 | 36 | 6 | 74 | HA | HB |
| HN-5D-TD-0048-A | 4.8 | 44 | 6 | 82 | HA | HB |
| HN-5D-TD-0049-A | 4.9 | 44 | 6 | 82 | HA | HB |
| HN-5D-TD-0050-A | 5 | 44 | 6 | 82 | HA | HB |
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 |
|---|---|---|---|---|
| ALCRONA (AlCrN) | Aluminium–chromium nitride (AlCrN) PVD coating, titanium-free; dense, fine-grained structure with high Al/Cr ratio to improve hot hardness and oxidation resistance. Typically deposited as a multi-layer or graded layer on solid carbide or HSS substrates. | Hardness: approx. 2800–3200 HV (nano-indentation). Coefficient of friction: ~0.3–0.35 in dry steel cutting. Heat resistance: stable at elevated temperatures, operating temperature up to about 1,000–1,100 °C with excellent hot hardness and oxidation resistance. High adhesion strength to tool substrate; low tendency to micro-chipping at the cutting edge. | Dark grey to blue-grey appearance. Titanium-free universal high-performance coating for heavy mechanical loads and high cutting speeds. Very high wear resistance under both low-speed / high-load and high-speed / dry-cut conditions. Good performance in dry or minimum-lubrication drilling, maintaining sharp cutting edges and consistent hole quality over long tool life. | Recommended workpiece materials: alloy and carbon steels, pre-hardened and hardened steels, cast irons and high-tensile structural steels. Especially suitable for high-performance carbide or HSS drills used in dry or semi-dry machining. Typical application fields: automotive power-train parts, mould & die holes, general engineering components and high-speed production drilling where long tool life and thermal stability are critical. |
Our 3 16 Drill Bit drawings clearly show key 3 16 Drill Bit dimensions such as diameter, radius, flute length and overall length. This helps you confirm the right 3 16 Drill Bit sizes for your CNC setup and machining depth before ordering.
A 3 16 drill bit in mm measures approximately 4.76 mm in diameter. This conversion is commonly referenced as 3 16 drill bit to mm and is widely used for CNC programming, metric drawings, and international machining standards.
A high-quality 3 16 drill bit for metal can be used for carbon steel, alloy steel, aluminum, and non-ferrous metals. With proper carbide material and coating, a 3 16 drill bit for stainless steel and even 3 16 drill bit for hardened steel can achieve stable performance and long tool life.
The 9 16 drill bit to mm conversion is approximately 14.29 mm. This reference is important for users working with metric drawings or CNC programs while using inch-size tooling.
Yes. A carbide 3 16 drill bit for stainless steel with wear-resistant coating and proper coolant supply is highly effective. Internal or external coolant helps reduce heat buildup and prevents work hardening, which is critical when drilling stainless steel.
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 3 16 drill bit is widely used in precision drilling operations across automotive, mold making, and general engineering industries. Designed as a reliable 3 16 drill bit for metal, it performs consistently in steel, stainless steel, and alloy materials under both CNC and conventional machining conditions.
With accurate diameter control and stable cutting behavior, the 3 16 drill bit size ensures clean holes and reduced burr formation. For deeper applications, long 3 16 drill bit and extra long 3 16 drill bit options are available, supporting flexible machining requirements. Metric reference from 3 16 drill bit in mm allows easy integration into global production environments.
Each 3 16 drill bit is manufactured from premium carbide material and optimized for high-precision drilling. As a durable 3 16 drill bit for stainless steel, it offers excellent wear resistance, stable chip evacuation, and extended tool life during continuous machining.
Advanced grinding geometry improves cutting efficiency while maintaining hole accuracy and surface finish. The 3 16 drill bit size is strictly controlled to ensure consistency from batch to batch, making it suitable for demanding production environments. For deep-hole drilling or special setups, long 3 16 drill bit solutions can be customized to meet specific machining needs.
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 3 16 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 3 16 Drill Bit.
Each of your tungsten 3 16 Drill Bit will be sandblasted to effectively remove burrs and improve the finish.
All HNCarbide’s 3 16 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 3 16 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 3 16 drill bit in mm measures approximately 4.76 mm in diameter. This conversion is commonly referenced as 3 16 drill bit to mm and is widely used for CNC programming, metric drawings, and international machining standards.
A high-quality 3 16 drill bit for metal can be used for carbon steel, alloy steel, aluminum, and non-ferrous metals. With proper carbide material and coating, a 3 16 drill bit for stainless steel and even 3 16 drill bit for hardened steel can achieve stable performance and long tool life.
The 9 16 drill bit to mm conversion is approximately 14.29 mm. This reference is important for users working with metric drawings or CNC programs while using inch-size tooling.
Yes. A carbide 3 16 drill bit for stainless steel with wear-resistant coating and proper coolant supply is highly effective. Internal or external coolant helps reduce heat buildup and prevents work hardening, which is critical when drilling stainless steel.
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.
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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 selecting a drill bit for precision metalworking, the 3 16 drill bit is one of the most commonly used and versatile sizes in both CNC and conventional machining. From general steel drilling to stainless steel and hardened materials, choosing the right 3 16 drill bit size, coating, and length directly affects tool life, hole accuracy, and production efficiency.
This guide explains everything you need to know about the 3 16 drill bit, including size conversion, material suitability, length options, and comparisons with nearby drill sizes.
A 3 16 drill bit refers to a drill bit with a diameter of 3/16 inch. This size is widely used for precision holes where neither very small micro drilling nor large-diameter drilling is required.
For international machining environments, metric conversion is often required. A 3 16 drill bit in mm equals approximately 4.76 mm. Many CNC programmers also refer to this conversion as 3 16 drill bit to mm when selecting tools for metric-based machines or drawings.
Because of its balanced diameter, the 3 16 drill bit size offers good rigidity while maintaining cutting efficiency, making it suitable for both shallow and moderately deep holes.
A high-quality 3 16 drill bit for metal is commonly used in:
Carbon steel components
Alloy steel parts
Aluminum and non-ferrous metals
Stainless steel machining
Compared with larger diameters, the 3 16 drill bit generates lower cutting forces, which helps reduce vibration and improve surface finish. This makes it especially suitable for CNC machining centers, lathes, and automated production lines.
Stainless steel and hardened steel present higher cutting resistance and heat concentration. For these materials, selecting a proper 3 16 drill bit for stainless steel or 3 16 drill bit for hardened steel is critical.
Carbide drill bits with advanced coatings significantly improve performance in these applications. Coatings such as TiXCo³ or ALCRONA reduce friction, enhance heat resistance, and extend tool life. When drilling stainless steel, internal or external coolant further improves chip evacuation and prevents work hardening.
Hole depth is another key consideration. While standard-length tools cover most applications, deeper holes require extended reach.
Long 3 16 drill bit: suitable for medium-depth drilling with stable guidance
Extra long 3 16 drill bit: designed for deep-hole drilling where standard tools cannot reach
For deep drilling, coolant supply becomes even more important. Internal coolant designs are often preferred for extra long 3 16 drill bit applications to ensure consistent cooling at the cutting edge.
Understanding how a 3 16 drill bit compares with nearby sizes helps avoid incorrect tool selection.
3/8 vs 3/16 drill bit: a 3/8 drill bit is twice the diameter, suitable for much larger holes and higher material removal
5/16 vs 3/16 drill bit: 5/16 provides greater rigidity but increases cutting force
7/32 vs 3/16 drill bit: 7/32 is slightly larger and may affect tolerance-sensitive designs
5/32 vs 3/16 drill bit: 5/32 is smaller and better for finer holes
Selecting the correct size ensures dimensional accuracy and avoids unnecessary rework.
Both internal and external coolant designs are commonly used with the 3 16 drill bit.
External coolant: suitable for general machining and shallow drilling
Internal coolant: ideal for stainless steel, hardened steel, and deep-hole applications
When combined with high-performance coatings, coolant-assisted drilling significantly improves tool stability and surface quality.
Coatings play a key role in extending tool life and improving cutting efficiency:
TiXCo³ coating: excellent wear resistance and thermal stability
ALCRONA coating: high hardness and oxidation resistance
Choosing the right coating depends on material type, cutting speed, and coolant method.
The 3 16 drill bit is widely used in:
Automotive parts manufacturing
Mold and die machining
General engineering components
Precision metalworking workshops
Its versatility makes it a standard tool size across many CNC machining environments.
The 3 16 drill bit remains a critical tool for precision drilling across a wide range of materials and industries. By understanding 3 16 drill bit size, metric conversion, material compatibility, coolant options, and length selection, manufacturers can significantly improve machining efficiency and tool performance.
Whether you need a 3 16 drill bit for metal, stainless steel, or hardened materials, choosing the right specification ensures consistent hole quality and long-term cost efficiency.
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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