Industrial-Grade Cobalt Step Drill Bit for Hard Metals
The OXMUL M35 Cobalt Step Drill Bit (1/4" to 1-3/8") is a heavy-duty, precision-engineered tool designed for stainless steel, hardened metals, and tough alloys. Built with 7% cobalt steel and a black oxide coating, this 6-step bit delivers 6X longer life and 2X faster cutting than standard HSS bits. Whether you're a mechanic, metalworker, or serious DIYer, this industrial-grade step bit chews through stainless steel, aluminum, and copper with ease.
Rugged Construction & High-Performance Design
M35 Cobalt Steel (7% Cobalt) – Harder & more heat-resistant than standard HSS, perfect for stainless steel, galvanized metal, and iron. Black Oxide Coating – Reduces friction, extends bit life, and prevents corrosion.
Tri-Flat Shank (3/8") – Locks securely in drill chucks, preventing spin-out under heavy load.
2-Straight Flutes – Clears metal chips faster, reducing overheating and clogging.
6 Graduated Steps (1/4" to 1-3/8") – Covers common hole sizes for plumbing, fabrication, and automotive work.
Heavy-Duty Applications – Where & How to Use It
Stainless Steel Fabrication – Drills sinks, exhaust pipes, brackets without dulling.
Automotive & Machinery – Perfect for tractor buckets, loader arms, brake rotors, and lug bolts.
HVAC & Plumbing – Cuts clean holes in copper tubing, steel pipes, and PVC.
How to Use (Pro Tips):
Clamp metal securely – Prevents vibration for cleaner holes.
Start slow, then increase speed – Best for stainless steel & hard metals.
Use cutting oil – Extends bit life and reduces heat buildup.
Clear chips frequently – Prevents clogging for smoother drilling.
Built for Pros – No-Nonsense Performance
This OXMUL M35 Cobalt Step Bit is not a cheap drill bit—it’s a long-term investment. Engineered for welders, metalworkers, and mechanics, it outlasts standard bits and drills stainless steel like butter. No more swapping bits or burning through flimsy drills—get the job done faster, cleaner, and with less hassle.
