Irwin HSS Cobalt Drill Bit 12 mm x 151 mm

The Irwin HSS Cobalt Drill Bit is designed for precision drilling in stainless steel and other high alloys. This 12.0 mm bit features a 135° split point to ensure perfect centering and reduce drilling pressure, supporting accurate starts and efficient cutting. The body is made from high-speed steel with 5% cobalt, which enhances red hardness and extends service life under demanding cutting conditions. A golden tempered surface finish provides rust and corrosion resistance, while an industrial quality ground flute enables high-precision drilling and fast chip removal. Overall, the bit combines heat resistance, durability, and reliable performance for challenging industrial applications.

Features

• 12.0 mm diameter drill bit
• 135° split point for centering and reduced pressure
• HSS with 5% cobalt for heat resistance
• Industrial quality ground flute for accuracy
• Golden tempered surface resists rust and corrosion

Technical specifications

• Working length: 101 mm
• Overall length: 151 mm
• Material: HSS with 5% cobalt
• Suitable for stainless steel and high alloys
• Improved red hardness; extended bit life