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Trusted OEM/ODM Partner for Global Brands | HSS Drill Bits
OEM Partner for Industry Leaders
HSS Drill Bit Variants
Professional-grade twist drills engineered for precision and durability across diverse industrial applications
M35 Cobalt (5% Co)
The Stainless Steel Specialist
Extreme heat resistance for hard metal drilling. Amber finish indicates cobalt content for superior performance in demanding applications.
TiN Coated HSS
Extended Tool Life
Surface hardness up to HV 2300, reducing friction and heat buildup during high-speed operation. Gold coating ensures longevity.
Fully Ground Bright Finish
Precision Accuracy
Mirror-polished flutes for superior chip evacuation and high-precision hole sizing. Ideal for CNC and precision machinery.
Black Oxide Finish
Enhanced Lubrication
Anti-corrosive surface that retains cutting fluids for smoother drilling in carbon steel. Cost-effective solution for general use.
1/4" Hex Shank HSS Bits
Quick Change Ready
Precision-engineered hex base to prevent slipping in high-torque impact drivers. Perfect for modern power tools and retail markets.
Reduced Shank Taper Shank
Large Hole Versatility
Allows large diameter bits to fit standard 1/2" chucks while preventing chuck slippage. Solves tooling limitations for contractors.
HSS Material Comparison Chart
Professional guidance for selecting the right drill bit material
| Material Grade | Hardness (HRC) | Best For | Key Advantage |
|---|---|---|---|
| HSS 4241 | 62-65 | Soft metals, wood, plastics | Economical general-purpose drilling |
| HSS 4341 | 63-66 | Carbon steel, aluminum alloys | Balanced performance and cost |
| HSS 6542 (M2) | 64-67 | Alloy steel, cast iron | Superior toughness and wear resistance |
| HSS-Co M35 (5% Co) | 65-68 | Stainless steel, hardened steel | Extreme heat resistance, no annealing |
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From Raw Material
to Shipment
Our comprehensive 8-step manufacturing process ensures every tool meets international quality standards.
Material Inspection
Premium HSS M2/M35 and high-grade carbide materials undergo spectral composition analysis for every batch.
Blank Cutting
Automated cutting machines precisely cut raw materials into standard-length blanks for processing.
Forging & Grinding
Fully automated grinding machines process flutes with precise geometric dimensions for optimal chip evacuation.
Salt Bath Heat Treatment
Controlled quenching and tempering achieve ideal hardness (HRC 63-66) while maintaining toughness.
Sharpen Edge
It creates the precise cutting angles and sharpness needed to slice through metal efficiently.
Final Quality Check
100% sampling or full inspection of concentricity, runout, and hardness ensures zero defective products.
Anti-Rust & Packaging
Anti-rust oil application and packaging in Tenyu Tool or custom plastic boxes/blister cards for protection.
Loading & Shipping
Professional packing ensures products remain moisture-free and undamaged throughout long-distance shipping.
Global Standards &
Certified Quality
Tenyu Tool operates under a strict ISO-certified management system. Our products meet international standards (DIN, ANSI, JIS), ensuring seamless market entry for our global partners.
ISO 9001:2015
Quality management system certification demonstrating our commitment to consistent, high-quality manufacturing processes and continuous improvement.
SGS Audit Report
Third-party factory inspection verification confirming our facility operations, production capacity, and quality control systems meet international standards.
RoHS Certificate
Environmental compliance certification ensuring our products are free from hazardous substances, meeting EU and global market requirements for safe trade.
Tenyu Tool on the
Global Stage
Connecting with industry leaders and professional buyers worldwide at premier hardware exhibitions.
EISENWARENMESSE
Cologne, Germany
Showcasing precision HSS drill bits at EISENWARENMESSE, Germany. Building strong partnerships in the European market.
National Hardware Show
Las Vegas, USA
Engaging with North American distributors at NHS Las Vegas. Custom OEM solutions for leading tool brands.
Canton Fair
Guangzhou, China
Welcoming global partners at the Canton Fair. 15+ years of consistent presence as a trusted manufacturer.
Frequently Asked Questions
Everything you need to know about partnering with Tenyu Tool for your drill bits and saw blades supply needs.
Why should I choose Tenyu Tool as my drill bits supplier?
Does Tenyu Tool support custom specifications?
How do you guarantee delivery times for large orders?
Can I get a sample before placing a bulk order?
What certifications does your factory hold?
What is the minimum order quantity (MOQ)?
Still have questions? We're here to help.
Trusted by Global
Industry Leaders
"Tenyu Tool's drill bits deliver exceptional stability when cutting stainless steel. Their M35 series offers the best cost-performance ratio we've tested."
"We require extensive OEM customization. Tenyu Tool's communication efficiency and packaging design capabilities exceeded our expectations."
"Since partnering with Tenyu, we've never experienced a delivery delay. This stability is crucial for managing our inventory pressure."
Ready to Partner with
a Trusted Manufacturer?
Contact us for bulk pricing, custom specifications, or sample requests. Our team responds within 24 hours.