M35 Cobalt Twist Drills

M35 Cobalt Twist Drills — 5% Cobalt HSS

When standard HSS drills struggle, the M35 Cobalt Twist Drill steps up. With 5% cobalt alloyed into the high-speed steel, these drills handle the tough stuff — stainless steel, hardened alloys, cast iron, and heat-resistant materials — without losing their edge. Whether you're on the workshop floor or running production, M35 cobalt drills deliver consistent, reliable performance hole after hole.

Key Features

• 5% Cobalt (M35) HSS — superior heat and wear resistance over standard HSS
• Excellent for drilling stainless steel, hard alloys, and tough ferrous metals
• Maintains cutting edge integrity at elevated temperatures
• Available in sizes 5mm through 13mm to suit a wide range of applications
• Standard jobber length geometry for versatile use in drill presses, lathes, and hand drills

Size & Dimensions

Applications

• Stainless steel and hard alloy drilling
• General engineering and fabrication
• Automotive and aerospace maintenance
• Production machining where tool life matters