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Black Oxide Drill Bits for Steel
Black oxide drill bits designed for clean drilling in steel, iron, and carbon steel.
Multiple flute lengths and shank styles give wholesalers more options for repair shops, construction, and factory use.
Black oxide surface helps hold oil during steel drilling, supporting smoother feeding and reduce heat.
Optimized spiral flute geometry helps remove steel chips faster, drilling thin plates,and workshop steel parts.
Suitable for bulk tool sets, and OEM packaging, helping importers steel drilling product range under one brand.
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 Black Oxide Drill Bits for Steel
- Custom Packaging Options: Blister, color box, bulk pack— designed for importers and distributors
- Shank Type Customization: Straight, reduced, hex, and three-flat shanks — match industrial and retail applications
- Material Selection: HSS 4241 / 4341 / 6542 / M35 cobalt / M42 cobalt — choose by performance level
- Low MOQ: MOQ from 100 pcs — ideal for trial orders and new product launches
Application Notes
Discover the versatile applications and material compatibility of our products
Drilling Steel
- •These black oxide coated drill bits feature excellent anti-rust and lubrication performance. They reduce drilling friction, boost cutting efficiency and clear chips smoothly. Stable penetration creates neat precise holes, ideal for daily steel drilling jobs.
Drilling Aluminum
- •The special black oxide surface ensures smooth cutting on aluminum materials. It effectively avoids metal adhesion and speeds up chip evacuation. Labor-saving drilling leaves clean burr-free holes without material deformation.
Drilling Stainless Steel
- •High-strength black oxide drill bits own great heat and wear resistance. They resist high temperature abrasion during tough drilling. Maintain sharp cutting performance to process stainless steel steadily with accurate finished holes.
Real Factory & Application Videos
Watch real manufacturing and field applications to verify quality, performance, and supply capability
Need a Reliable Drill Bit Supplier for Bulk Orders?
Factory-direct supply supports stable quality, controlled lead time, and wholesale order flexibility.
Why Do Distributors Prefer Consistent Drill Bit Quality?
Stable batch quality helps protect your brand reputation and improves repeat order potential.
Looking for Drill Bits with Better Cutting Stability?
Accurate point geometry helps reduce slipping, walking, and poor hole positioning during drilling.
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.
How To Drill Sheet Metal Without Burrs?
Use sharp HSS drill bits with low speed, steady pressure and proper lubrication to get smooth sheet metal holes with no burrs.
How To Drill Through Thick Sheet Metal?
Start with a small pilot hole, use premium HSS drill bits, run low speed and add cutting fluid for stable thick sheet metal drilling.
What Type Of Drill Bit Is Best For Thick Metal?
High-performance HSS cobalt drill bits are the top option, delivering strong hardness and heat resistance for thick metal plates.
Is Titanium Or Cobalt Drill Bits Better For Metal?
Cobalt HSS bits outlast titanium coated bits for hard metal, while titanium HSS bits work better for thin sheet metal daily use.
What Is Hss Drill Bits?
HSS drill bits are high speed steel cutting tools, hard and heat resistant for drilling steel, metal, wood and plastic materials.
How To Drill Through Steel?
Use sharp HSS drill bits, run low speed, apply light steady pressure and add cutting fluid to drill steel cleanly and safely.
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Trusted by businesses worldwide
See what our global partners say about our premium drilling tools and cutting solutions.
"We Use Black Oxide Drill Bits for Steel In mass production of carbon steel components. Premium HSS base with black oxide finish brings great rust resistance, it can drill more than one hundred holes on solid steel without rapid abrasion. The stable working performance fully meets our production needs, and we hope to keep long-term supply cooperation."
Liam Henderson
Auto Body Repair Workshop Manager
United Kingdom
"We wholesale black oxide coated steel drill bits to local engineering teams and hardware retailers. The optimized spiral flute discharges steel scraps smoothly, effectively avoiding bit jamming during continuous deep drilling. Products gain steady market praise, so we will keep placing bulk orders steadily in the future."
Giulia Bianchi
Automotive Hardware Importer
Italy
"Our workshop applies Black Oxide Drill Bits for Steel in daily equipment overhaul and part installation. The special surface coating lowers drilling friction greatly, it works smoothly on thick steel plates and ordinary iron materials. Satisfied with both quality and delivery speed, we intend to maintain lasting business partnership."
Ole Kristensen
Vehicle Modification Engineering Contractor
Norway
"We Use Black Oxide Drill Bits for Steel In mass production of carbon steel components. Premium HSS base with black oxide finish brings great rust resistance, it can drill more than one hundred holes on solid steel without rapid abrasion. The stable working performance fully meets our production needs, and we hope to keep long-term supply cooperation."
Liam Henderson
Auto Body Repair Workshop Manager
United Kingdom
"We wholesale black oxide coated steel drill bits to local engineering teams and hardware retailers. The optimized spiral flute discharges steel scraps smoothly, effectively avoiding bit jamming during continuous deep drilling. Products gain steady market praise, so we will keep placing bulk orders steadily in the future."
Giulia Bianchi
Automotive Hardware Importer
Italy
"Our workshop applies Black Oxide Drill Bits for Steel in daily equipment overhaul and part installation. The special surface coating lowers drilling friction greatly, it works smoothly on thick steel plates and ordinary iron materials. Satisfied with both quality and delivery speed, we intend to maintain lasting business partnership."
Ole Kristensen
Vehicle Modification Engineering Contractor
Norway
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