$15.80
A) Drill Diameter 2.5mm
B) Overall length 57mm
C) Flute length 30mm
Point angle 118 degrees
Frequently Asked Questions
What materials can this cobalt drill bit cut?
Our cobalt drill bits handle stainless steel, cast iron, hardened steel, alloy steels, aluminum, copper, and more.
What speed should I use when drilling metal?
Use our Speeds & Feeds Calculator to set the correct RPM. Running too fast will overheat the bit; slower speeds preserve sharpness.
Can cobalt drill bits be resharpened?
Yes — cobalt drill bits can be resharpened, giving you long-term value.
How is cobalt different from standard HSS?
Cobalt (M35, 5%) withstands higher heat and stays sharper longer, making it ideal for harder metals compared to standard high-speed steel.
Do I need cutting paste when drilling metal?
We recommend TTP CUT-IT cutting paste for smoother drilling, cooler operation, and longer tool life.
What customers say
Average rating:
4.9 / 5 ·
Based on
154 reviews
- DIYMark (YouTube) — “TTP HARD outperformed leading US bits on tough metals.”
- Catus Maximus (YouTube) — “Impressed with the M35 cobalt set and CUT-IT paste.”
- Customer — “Clean holes in stainless; slower RPM + paste made the difference.”
Reviews reflect the TTP HARD cobalt drill bits range. Independently tested and certified for hardness by SGS Testing.
2.5mm cobalt M35 metal drill bits
Drill stainless steel and harder metals easily:
- Heavy Duty Cobalt Drill Bits
- Suitable for drilling harder metals including stainless steel
- Used by professionals and home improvement enthusiasts
- Can be resharpened
- Rockwell hardness C average of 66 certification
- Money Back Guarantee
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2.5mm Drill Bit For Metal – High Performance for Tough Jobs
Tackle stainless steel, aluminum, and other metals with our 2.5mm drill bit for metal. Long-lasting cobalt strength and precision engineering.
Control, Precision, and Smooth Starts
The 2.5mm drill bit for metal features a 118° tip that prevents walking and gives you greater control when starting each hole. Whether you’re drilling a pilot hole or working with thin-gauge materials, it provides the precision you need.
Engineered for Harder Metals
Made from premium M35 cobalt steel, this bit powers through:
Stainless and alloy steels
Aluminum and brass
Cast iron
Copper and plastic-faced metals
Boost cutting efficiency and lifespan by using TTP CUT-IT lubricant—a top performer in metal drilling.
Optimize with a Click
Use our Speeds & Feeds Calculator to dial in the perfect drilling speed based on your setup.
Built for U.S. Professionals
Used by tradesmen across industries, this drill bit delivers outstanding results. Our Customer Reviews PDF proves it’s the real deal. All purchases are protected by our money-back guarantee.
Summary
Compact, powerful, and precise—the 2.5mm drill bit for metal is ideal for technicians, electricians, and engineers who need a dependable bit that can take the heat.
Additional information
| Weight | 0.05 lbs |
|---|
Prices : All Prices are United States (US) Dollar ($) Shipping : We ship from Michigan Warehouse across North America & Canada (Max cart weight 4.2lbs for Canada)