Request Free Sample
Fill out the form below and we'll send you product samples within 48 hours.
Premium Drill Bits for Inox & Stainless Steel
Made from high-speed steel for reliable drilling performance in general metal applications.
135° split point is self-centering without wandering on thin stainless steel.
Metric, inch, letter, and wire gauge sizes are available for different regional markets.
Straight shank design fits most standard drill chucks and handheld drilling machines.
Precision drill diameter control helps reduce customer complaints about hole size accuracy.
Trusted by Global Brands
OEM Partner for Industry Leaders
Customization & Packaging
Complete OEM/ODM solutions tailored to your brand requirements
Build Your Own Brand with Custom Drill Bits for Inox & Stainless Steel
- Material Selection: HSS 4241 / 4341 / 6542 / M35 / M42 — match your target price and performance level
- Shank Type Customization: Straight shank / reduced shank / hex shank / three flats — fit different machines and markets
- Custom Packaging Options:Blister, color box, bulk pack — match your local retail channels
- Low MOQ:MOQ from 100 pcs with sample support — test your market before bulk orders
Application Notes
Discover the versatile applications and material compatibility of our products
Drilling Stainless Steel
- •Premium double-ended drill bits feature high-hardness HSS build for tough stainless steel drilling. Optimized cutting geometry reduces heat and friction, prevents tip burn. Delivers precise, burr-free round holes with outstanding wear resistance and long service life.
Drilling Aluminum Alloy
- •Perfect for aluminum alloy processing, these bits have smooth spiral flutes for fast chip removal. Sharp double cutting ends cut effortlessly with low resistance. No burrs or material deformation, enabling quick and clean hole drilling for alloy panels.
Drilling Iron Block
- •Designed for solid iron block drilling, the dual-end structure provides strong impact and cutting power. Excellent toughness avoids breakage under heavy load. Efficient chip discharge keeps drilling stable, suitable for long-duration iron block hole machining.
Real Factory & Application Videos
Watch real manufacturing and field applications to verify quality, performance, and supply capability
Why Do Importers Choose HSS Twist Drill Bits for Metal Drilling?
Built for stable metal drilling performance, suitable for wholesalers, tool distributors, and private label buyers.
Looking for Twist Drill Bits That Reduce Customer Complaints?
Consistent hardness, sharp cutting edges, and batch inspection help reduce returns from end users.
Need Drill Bits That Match Your Local Market Demand?
Multiple materials and sizes can be supplied for different price levels and drilling applications.
Our Production Process
From raw materials to finished products, every step is meticulously controlled to ensure superior quality and precision.
Raw Material Cutting
Heat Treatment
Coarse Grinding
Shank Grinding
Flute Edge Grinding
Fine Grinding
Double Angle
Angle Grinding
Sharping Edge
International Certifications
Our products meet the highest international standards and are certified by leading quality organizations worldwide.
RoHS Certificate
• Expiry Date:2027.10.05
ISO 9001:2015
• Expiry Date:2028.10.05
SGS Audit Report
• Expiry Date:2028.01.05
Product Spec Table
| SKU | Key Specs | Material / Coating | Packaging |
|---|---|---|---|
| 1/64"/0.5mm | 12mm Flute Length / 34mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 3/64"/1.0mm | 12mm Flute Length / 34mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 1/16"/1.5mm | 20mm Flute Length / 43mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 5/64"/2.0mm | 24mm Flute Length / 49mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 3/32"/2.5mm | 30mm Flute Length / 57mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 7/64"/3.0mm | 33mm Flute Length / 61mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 9/34"/3.5mm | 39mm Flute Length / 70mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 5/32"/4.0mm | 43mm Flute Length / 75mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 11/64"/4.5mm | 47mm Flute Length / 80mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 3/16"/5.0mm | 52mm Flute Length / 86mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 7/32"/5.5mm | 57mm Flute Length / 93mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 15/64"/6.0mm | 57mm Flute Length / 93mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 1/4"/6.5mm | 63mm Flute Length / 101mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 17/64"/7.0mm | 69mm Flute Length / 109mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 9/32"/7.5mm | 169mm Flute Length / 101mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 5/16"/8.0mm | 75mm Flute Length / 117mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 21/64"/8.5mm | 75mm Flute Length / 117mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 11/32"/9.0mm | 81mm Flute Length / 125mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 3/8"/9.5mm | 81mm Flute Length / 125mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 25/64"/10.0mm | 87mm Flute Length / 133mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 13/32"/10.5mm | 87mm Flute Length / 133mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 27/26"/11mm | 94mm Flute Length / 142mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 7/16"/11.5mm | 94mm Flute Length / 142mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 15/32"/12mm | 101mm Flute Length / 151mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 31/64"/12.5mm | 101mm Flute Length / 151mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 1/2"/13.0mm +mm | 101mm Flute Length / 151mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 17/32"/13.5mm | 108mm Flute Length / 160mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 9/16"/14.0mm | 108mm Flute Length / 160mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 37/64"/14.5mm | 114mm Flute Length / 169mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 19/32"/15.0mm | 114mm Flute Length / 169mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 39/64"/15.5mm | 120mm Flute Length / 178mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 5/8"/16.0mm | 120mm Flute Length / 178mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 21/32"/16.5mm | 125mm Flute Length / 184mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 43/64"/17.0mm | 125mm Flute Length / 184mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 11/16"/17.5mm | 130mm Flute Length / 191mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 45/64"/18.0mm | 130mm Flute Length / 191mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 47/64"/18.5mm | 135mm Flute Length / 198mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 3/4"/19.0mm | 135mm Flute Length / 198mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 49/64"/19.5mm | 140mm Flute Length / 205mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
| 25/32"/20.0mm | 140mm Flute Length / 205mm Overall Length | M35/M42 Body Material/Custom Coated | Plastic Box/Paper Box/Customization |
Frequently Asked Questions
Everything you need to know about our products, customization options, and ordering process.
What Are The Best Drill Bits To Drill Stainless Steel?
Cobalt M35 and M42 drill bits are the top choice, offering high heat resistance and hardness for clean stainless steel drilling.
What Is An Inox Drill Bit?
An inox drill bit is specially engineered for inox stainless steel, featuring premium alloy material to resist hard metal wear.
Is Cobalt Or Titanium Drill Bits Better For Stainless Steel?
Cobalt drill bits outperform titanium versions, holding up better against high heat and tough stainless steel surfaces.
Is Carbide Or Hss Better For Stainless Steel?
Carbide bits suit heavy industrial stainless steel, while cobalt alloy HSS works well for regular daily and light workshop use.
Does Stainless Steel Need A Specific Drill Bit?
Yes, stainless steel requires hardened alloy drill bits to avoid overheating, dulling quickly and uneven hole cutting.
What Is The Hardest Drill Bit For Stainless Steel?
M42 high cobalt drill bits and solid carbide bits rank the hardest, ideal for drilling thick and hard stainless steel plates.
Need a Quotation?
Send us your inquiry with contact person, WhatsApp, email, and message. Our team will respond quickly.
Other ways to reach us
Related Products
Trusted by businesses worldwide
See what our global partners say about our premium drilling tools and cutting solutions.
"We Use These Drill Bits For Inox & Stainless Steel In Our Daily Production. The Cobalt Coating Provides Excellent Heat Resistance, Allowing Us To Drill Over 100 Holes In 304 Stainless Steel Without Dulling. The Stable Performance And Longevity Make Us Very Satisfied, And We Hope To Continue Our Cooperation."
Liam Henderson
Auto Body Repair Workshop Manager
United Kingdom
"As A Distributor, We Import Stainless Steel Drill Bits For Local Retailers. Our Customers Praise Their Precise Sizing And Clean Holes, Which Are Perfect For Kitchenware And Handrail Fabrication. The Quality Is Consistent, And We Will Definitely Place Repeat Orders."
Giulia Bianchi
Automotive Hardware Importer
Italy
"Our Team Relies On Inox Drill Bits For Balcony Railing And Metal Structure Projects. They Stay Sharp Even On Job Sites And Deliver Consistent Results. We Value This Reliability And Look Forward To A Long-Term Partnership."
Ole Kristensen
Vehicle Modification Engineering Contractor
Norway
"We Use These Drill Bits For Inox & Stainless Steel In Our Daily Production. The Cobalt Coating Provides Excellent Heat Resistance, Allowing Us To Drill Over 100 Holes In 304 Stainless Steel Without Dulling. The Stable Performance And Longevity Make Us Very Satisfied, And We Hope To Continue Our Cooperation."
Liam Henderson
Auto Body Repair Workshop Manager
United Kingdom
"As A Distributor, We Import Stainless Steel Drill Bits For Local Retailers. Our Customers Praise Their Precise Sizing And Clean Holes, Which Are Perfect For Kitchenware And Handrail Fabrication. The Quality Is Consistent, And We Will Definitely Place Repeat Orders."
Giulia Bianchi
Automotive Hardware Importer
Italy
"Our Team Relies On Inox Drill Bits For Balcony Railing And Metal Structure Projects. They Stay Sharp Even On Job Sites And Deliver Consistent Results. We Value This Reliability And Look Forward To A Long-Term Partnership."
Ole Kristensen
Vehicle Modification Engineering Contractor
Norway
Get Your Free Sample
Contact us today to discuss your requirements and receive a free sample