The Irwin M-35 cobalt drill bit delivers reliable performance in hardened steel, stainless steel, titanium, and other tough metals. The 5% cobalt alloy provides superior heat and abrasion resistance compared to standard high-speed steel bits.

• M-35 cobalt alloy steel (5% cobalt) for maximum hardness
• 135-degree split point starts on contact and reduces walking
• Heavy duty web construction for added strength
• Gold oxide finish for corrosion resistance
• Straight shank jobber length design
• Drills hardened steel, stainless steel, titanium, and super alloys
• 5/16" diameter x 4-1/2" overall length