HSS Drill Bits Manufacturer & Supplier
HSS drill bits (High Speed Steel drill bits) are widely used for drilling metal in manufacturing, fabrication, maintenance, construction and workshop applications. Different HSS material grades provide different combinations of hardness, toughness, heat resistance and wear resistance.
DLTC manufactures and supplies HSS drill bits in material grades including 4241, 4341, M2 and M35 cobalt HSS, helping distributors, importers and industrial buyers select suitable products for different markets and drilling requirements.
HSS drill bit performance depends not only on the steel grade, but also on the workpiece material, drill geometry, heat treatment, cutting speed, feed rate and drilling conditions. The sections below provide a practical overview of the HSS grades available from DLTC.
For more information about common drill bit finishes and cobalt HSS, see our comparison of black oxide vs titanium vs cobalt drill bits.
What Are HSS Drill Bits?
HSS drill bits are cutting tools made from high speed steel. HSS is designed to retain useful hardness and cutting performance at elevated temperatures generated during machining, making it widely used for metal drilling applications.
Compared with basic carbon steel drill bits, HSS drill bits generally provide:
- Better heat resistance during metal drilling
- Good wear resistance and cutting performance
- A useful balance of hardness and toughness
- Suitability for a wide range of metalworking applications
They are commonly used for drilling steel, aluminum, copper and other metals, with the appropriate HSS grade selected according to the material and operating conditions.
HSS Drill Bits by Material Grade
HSS drill bits are available in different material grades. Rather than treating every grade as a simple quality ranking, it is more useful to select the material according to the workpiece, drilling conditions, required tool life and target market.
HSS 4241 Drill Bits
HSS 4241 Drill Bits
An economical HSS option for general-purpose drilling in softer materials and less demanding applications.
Typical characteristics:
- Economical HSS material option
- Suitable for lighter-duty drilling conditions
- Commonly selected for price-sensitive general-purpose markets
Typical applications:
- Soft metals
- Wood and plastic
- General household and workshop drilling
Suitable when: an economical HSS drill bit is required for general or lighter-duty applications.
HSS 4341 Drill Bits
HSS 4341 Drill Bits
A general-purpose HSS option used for metal drilling where a practical balance of performance and cost is required.
Typical characteristics:
- Suitable for general metal drilling
- Practical balance of wear resistance and cost
- Suitable for regular workshop and general industrial use
Typical applications:
- Mild steel
- Aluminum and other non-ferrous metals
- General workshop and fabrication applications
Suitable when: a general-purpose HSS drill bit is required for routine metalworking applications.
M2 HSS Drill Bits
Typical characteristics:
- Good balance of hardness and toughness
- Good wear and heat resistance
- Suitable for professional and industrial metal drilling
Typical applications:
- Carbon steel and alloy steel
- Metal fabrication
- Machinery manufacturing and maintenance
Suitable when: consistent professional performance is required for a broad range of metal drilling applications.
M35 Cobalt HSS Drill Bits
Typical characteristics:
- Approximately 5% cobalt in the HSS alloy
- Higher hot hardness and heat resistance than conventional HSS grades
- Suitable for demanding and higher-temperature cutting conditions
Typical applications:
- Stainless steel
- High-strength steels and tougher metal materials
- Professional and industrial metal drilling
Suitable when: greater heat resistance and wear resistance are required for demanding metal drilling applications.
Applications of HSS Drill Bits
HSS drill bits are widely used across professional and industrial applications, including:
- Metal fabrication
- Machinery manufacturing
- Automotive production and maintenance
- Construction and installation work
- Machinery repair and maintenance
- General workshop and industrial drilling
The appropriate HSS grade, drill geometry and cutting conditions should be selected according to the workpiece material and required drilling performance.
How to Choose the Right HSS Drill Bit Grade
There is no single HSS grade that is ideal for every drilling application. Selection should be based on the workpiece material, drilling conditions, expected tool life and purchasing requirements.
- HSS 4241: economical option for softer materials and lighter-duty general drilling
- HSS 4341: general-purpose option for routine metal drilling and workshop applications
- M2 HSS: professional-grade option for a broad range of metalworking and industrial drilling applications
- M35 Cobalt HSS: suitable for demanding metal drilling where greater hot hardness and wear resistance are required, including many stainless steel applications
If you are sourcing HSS drill bits for distribution or wholesale, DLTC can help you select the appropriate material grade according to your target market, application and price positioning.
HSS Drill Bits Manufacturer for B2B Buyers
With drill bit manufacturing roots dating back to 1984, DLTC manufactures HSS drill bits in China for distributors, importers, wholesalers and industrial buyers in international markets.
Our HSS drill bit range includes 4241, 4341, M2 and M35 material options for different applications and market requirements.
For OEM and private-label orders, we can support customer logo marking, custom labels, packaging options and product specifications according to order requirements.
- Multiple HSS material grades: 4241 / 4341 / M2 / M35
- OEM and private-label support
- Custom logo, labels and packaging options
- Supply for distributors, importers and wholesale buyers
Related Drilling Tools
Explore other DLTC drilling tool categories for professional and B2B applications:
👉 Explore our drilling tool catalog for additional products and specifications.
Contact Us for Wholesale HSS Drill Bits
If you are looking for an HSS drill bits manufacturer and supplier for your market, contact DLTC to discuss material grades, sizes, quantities, packaging and OEM requirements.
We support bulk orders and long-term cooperation with distributors, importers, wholesalers and industrial partners.