$15.80

Cobalt drill bits tested watch the video
SKU: HARD3/32 x 10 Categories: ,

Drill bit dimension measurements

A)  Drill Diameter 3/32″

B)  Overall length  2″ + 1/4″

C)  Flute length    1″ + 3/16″

Illustration of drill bit point angle of 118 degPoint 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.

3/32" 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

4 tips for drilling metal

Click here for Imperial drill bit sizes

Click here for Metric drill bit sizes

 

3/32" Drill Bit for Metal – Ideal for Electrical and M2.5 Prep

The 3/32" drill bit for metal cuts cleanly in stainless and alloy steels. Great for pilot holes, control panels, and precise pre-thread tapping.


Precision and Versatility

The 3/32" drill bit for metal strikes an ideal balance between finesse and strength. It’s commonly used in electrical panel work, mounting hardware for instruments, and creating pilot holes for M2.5 tapping. Its versatile size allows for detailed work without compromising durability.

This bit’s slightly thicker profile adds stability while maintaining precision—especially valuable when drilling into thin gauge sheet metal or compact assemblies.


Heat-Toughened Cobalt Steel

Crafted from M35 cobalt, this drill bit is designed for high performance under tough conditions. It features a 118° point angle, which gives excellent control and accurate starts, particularly on flat surfaces or hand drills.

Use the 3/32" bit to drill:

  • Stainless steel sheets and brackets

  • Mild steel and galvanized metals

  • Brass, bronze, and copper

  • Plastics and electrical enclosures

  • Aluminum rails and supports


Extend Bit Life with Metal Cutting Paste

To maintain peak performance, use TTP CUT-IT metal cutting paste during drilling. It cools and lubricates the drill tip, helping to avoid overheating or premature dulling—especially crucial with repeated use in stainless steel.


Know Your Speed for Maximum Control

Avoid damaging your work or your tool. For best results, check the correct RPM using our Speeds & Feeds Calculator. This ensures your 3/32" drill bit for metal runs at a pace that maximizes precision and longevity.


Built for Performance, Backed by Guarantee

From electricians to precision fabricators, professionals rely on this 3/32" drill bit for metal every day. If it doesn’t exceed expectations, our money-back guarantee makes your purchase completely risk-free.

 

Additional information

Weight0.5 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)

Cobalt drill bits for metal
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.