Imagine gliding a drill bit through stainless steel as if cutting through butter — that’s the power you’ll feel with the M35 cobalt drill bit set in your toolkit. Designed for professionals, metalworkers, and serious DIYers, this cobalt high speed steel drill bits set combines rugged durability, heat resistance, and precise cutting performance. Whether you're working on exhausts, sheet metal, or aerospace parts, this set stands out for its ability to last longer and cut cleaner under pressure. Use it when others falter, especially on tough stainless or alloy surfaces.

Structured Product Sheet

Key Features

• Made from premium M35 grade high speed steel with 5% cobalt, delivering exceptional wear resistance and red-hardness.

• 135° split-point tip design minimizes “walking” and enables direct entry, even without pilot holes.

• Fully ground twist flutes evacuate chips smoothly, reduce heat build-up, and extend bit life.

• Comes in a compact, labeled case (or organizer) so that you always know which size to grab next.

Why Choose Our UltimateCut M35 Cobalt High Speed Steel Twist Drill Bit Set
Other drill sets may dull quickly or struggle under heat, especially when tackling stainless or high-tensile metal. Ours retains hardness under high temperature, can be sharpened again and again, and gives you confidence drilling harder alloys. You’ll get more usable life and fewer broken bits across tough jobs.

Perfect For

• Metal fabrication, automotive repair, HVAC and plumbing, stainless steel welding prep

• Contractors, mechanics, toolmakers, home workshop users

• Drilling into stainless steel, hardened steel, alloy steel, cast iron, and general metal sheet projects

How to Use / Care & Maintenance (optional but recommended)

• Use slower speeds and light pressure when penetrating hard metals.

• Apply cutting fluid or lubricant to reduce friction and heat—especially for stainless steel.

• Use the right bit size (don’t force an undersized bit) and retract occasionally to clear chips.

• After use, wipe clean, dry, and store in the case to avoid corrosion.

Product Specs (if known, adjust to yours)

• Material: M35 HSS with 5% cobalt

• Tip angle: 135° split point

• Size range: (e.g. 1.0 mm to 10.0 mm in 0.5 mm increments)

• Flute style: Right-hand twist, each flute fully ground

• Storage: Hardened metal or plastic case with size markings

Inviting Call to Action

Step up your drilling game and experience the precision and resilience of the UltimateCut M35 Cobalt High Speed Steel Twist Drill Bit Set — add it to your cart and see what clean, confident cuts feel like.