Skip to content HNCarbide manufactures high-quality hss drill bits for precision drilling in metal, steel, stainless steel, and wood.
Designed for industrial applications, our hss drill bits deliver reliable performance, excellent wear resistance, and clean hole finishes across a wide range of materials.
Our product range includes standard and custom hss drill bits, such as long hss drill bits, micro sizes from 1 mm to 5 mm hss drill bits, and enhanced options like cobalt hss drill bits for tougher materials. With strict quality control and flexible OEM support, we help manufacturers and distributors achieve consistent drilling results and lower tooling costs.
Send your inquiry today to find the best hss drill bits for your application.
HSS drill bits are widely used for general-purpose and industrial drilling thanks to their excellent balance of hardness, toughness, and cost efficiency. At HNCarbide, we manufacture high-quality hss drill bits designed for stable performance, long tool life, and consistent hole accuracy across multiple materials.
Our hss drill bits for metal are suitable for drilling carbon steel, alloy steel, stainless steel, aluminum, and non-ferrous metals. For more demanding applications, we also offer cobalt hss drill bits, which provide improved heat resistance and wear performance compared to standard HSS. When customers compare cobalt vs hss drill bits, cobalt-added HSS is often preferred for stainless steel and harder alloys.
The product range includes standard and custom solutions, such as long hss drill bits for deep-hole drilling and precise diameter options including 1 mm hss drill bits, 3.5 mm hss drill bits, 4mm hss drill bits, and 5mm hss drill bits. All sizes are manufactured under strict quality control to ensure dimensional accuracy and stable cutting performance.
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. |
HSS drill bits are used for drilling a wide range of materials, including carbon steel, alloy steel, stainless steel, aluminum, non-ferrous metals, and wood. Due to their balanced hardness and toughness, hss drill bits are suitable for CNC machines, drilling centers, and manual drilling applications.
They are commonly applied in automotive manufacturing, mechanical engineering, metal fabrication, maintenance, and general industrial production.
Yes. HSS drill bits for metal are specifically designed to handle the heat and cutting forces generated during metal drilling. Compared with carbon steel drill bits, hss drill bits offer improved wear resistance, higher cutting speed capability, and more stable hole quality.
They are widely used for drilling mild steel, structural steel, and low-alloy steel components.
When comparing cobalt vs hss drill bits, the main difference lies in hot hardness. Cobalt hss drill bits contain cobalt alloying elements (typically 5–8%), which allow them to retain hardness at higher temperatures.
Standard hss drill bits are more economical and suitable for general-purpose drilling, while cobalt-added tools are better for stainless steel and harder alloys. Choosing between cobalt or hss drill bits depends on material hardness, cutting speed, and production volume.
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.
HSS drill bits are widely used across metalworking, fabrication, maintenance, and general manufacturing industries. Thanks to their balanced hardness and toughness, hss drill bits for metal are suitable for drilling carbon steel, alloy steel, stainless steel, aluminum, and non-ferrous materials.
For tougher machining conditions, hss drill bits for stainless steel and cobalt hss drill bits provide improved heat resistance and stable cutting performance. Compared with standard tools, users evaluating cobalt vs hss drill bits often choose cobalt-added HSS for higher cutting temperatures and longer tool life.
Our hss drill bits for steel are designed to deliver clean holes, smooth chip evacuation, and reliable accuracy, making them ideal for CNC machines, drilling centers, and manual drilling operations.
Each hss drill bit is manufactured using high-quality high-speed steel and advanced grinding technology to ensure precise geometry and consistent performance. Optimized point angles and flute designs allow hss drill bits to achieve smooth cutting, reduced vibration, and improved tool life.
Our product range includes long hss drill bits for deep-hole drilling and precise diameter options such as 1 mm hss drill bits, 3.5 mm hss drill bits, 4mm hss drill bits, and 5mm hss drill bits, meeting both standard and specialized machining needs.
For customers comparing hss drill bits vs cobalt drill bits, we offer flexible solutions based on material hardness, cutting speed, and production volume. Strict quality inspection ensures every batch of hss drill bits delivers stable, repeatable results.
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 HSS Drill Bits 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 HSS Drill Bits.
Each of your HSS Drill Bits will be sandblasted to effectively remove burrs and improve the finish.
All HNCarbide’s HSS Drill Bits 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 HSS Drill Bits 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.
HSS drill bits are used for drilling a wide range of materials, including carbon steel, alloy steel, stainless steel, aluminum, non-ferrous metals, and wood. Due to their balanced hardness and toughness, hss drill bits are suitable for CNC machines, drilling centers, and manual drilling applications.
They are commonly applied in automotive manufacturing, mechanical engineering, metal fabrication, maintenance, and general industrial production.
Yes. HSS drill bits for metal are specifically designed to handle the heat and cutting forces generated during metal drilling. Compared with carbon steel drill bits, hss drill bits offer improved wear resistance, higher cutting speed capability, and more stable hole quality.
They are widely used for drilling mild steel, structural steel, and low-alloy steel components.
When comparing cobalt vs hss drill bits, the main difference lies in hot hardness. Cobalt hss drill bits contain cobalt alloying elements (typically 5–8%), which allow them to retain hardness at higher temperatures.
Standard hss drill bits are more economical and suitable for general-purpose drilling, while cobalt-added tools are better for stainless steel and harder alloys. Choosing between cobalt or hss drill bits depends on material hardness, cutting speed, and production volume.
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.
HSS drill bits continue to be a standard drilling solution in many machining environments, even as advanced tool materials become more common. Their ability to combine hardness, toughness, and thermal stability makes hss drill bits suitable for both industrial and general-purpose drilling.
Unlike more brittle materials, hss drill bits can tolerate variable cutting conditions, less rigid machines, and intermittent cutting, which explains why they remain widely adopted across different industries.
The performance of hss drill bits for metal is primarily determined by the alloy composition of high-speed steel. Elements such as tungsten and molybdenum enable hss drill bits to maintain cutting hardness at elevated temperatures.
This characteristic allows hss drill bits to operate at higher spindle speeds compared with carbon steel tools, while still delivering stable hole quality in steel and non-ferrous metals.
One of the key strengths of hss drill bits is their versatility. HSS drill bits for steel are commonly used for drilling carbon steel, structural steel, and low-alloy steel components.
For more demanding materials, hss drill bits for stainless steel are frequently selected, often with modified geometries or cobalt alloying to handle higher heat generation. In addition, hss drill bits for wood are widely applied in maintenance and construction tasks where clean hole finishes are required.
When discussing cobalt vs hss drill bits, the main technical difference lies in hot hardness and wear resistance. Cobalt hss drill bits typically contain 5–8% cobalt, which improves resistance to thermal softening during drilling.
As a result, cobalt-added tools perform better in stainless steel and harder alloys. However, when comparing hss drill bits vs cobalt drill bits, it is important to consider that cobalt tools are generally more brittle and costly. Choosing cobalt or hss drill bits depends on the balance between tool life and economic efficiency.
The comparison between carbide vs hss drill bits is common in modern machining. Carbide drill bits offer superior hardness and tool life in high-speed, high-volume production environments.
However, carbide tools require rigid machines and stable setups. Hss drill bits, by contrast, are more forgiving and adaptable. Although the term carbide hss drill bits is sometimes used in marketing, carbide and HSS represent distinct tool materials with different application characteristics.
Drill bit size plays a critical role in dimensional accuracy and process stability. Precision sizes such as 1 mm hss drill bits, 3.5 mm hss drill bits, 4mm hss drill bits, and 5mm hss drill bits are commonly used in precision components and assemblies.
For deep-hole drilling, long hss drill bits provide extended reach while maintaining guidance. Smaller diameters and longer lengths require precise manufacturing and controlled cutting parameters to prevent deflection and breakage.
Selecting the best hss drill bits for metal requires evaluating workpiece material, hole depth, cutting speed, and machine rigidity. Optimized point angles and flute designs improve chip evacuation and reduce cutting forces.
Proper coolant use and correct cutting parameters are essential, especially when drilling steel and stainless steel, to extend tool life and maintain hole quality.
Despite the availability of premium tool materials, hss drill bits remain a cost-effective solution for many drilling tasks. Their lower material cost, ease of regrinding, and broad application range make them suitable for small batches, maintenance work, and mixed-material production.
For manufacturers and distributors, reliable hss drill bits provide consistent performance without the higher investment required for carbide tooling.
HSS drill bits continue to be a fundamental drilling tool in modern machining. Their versatility, durability, and economic efficiency make them suitable for a wide range of applications, from general metal drilling to stainless steel and deep-hole operations.
By understanding material properties, size requirements, and performance differences compared with cobalt and carbide tools, engineers and buyers can make informed decisions and fully leverage the advantages of hss drill bits.
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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