#20 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Tekton pin punches can be

Tekton pin punches can be used to drive out or insert solid pins

Flute Length 9-7/8"

They are designed to perform in a broad range of mateirals in the iron and steel families

Shank Size 31/32"

Flute Length 145

#20 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Tekton pin punches can beProduct Description Cobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Ideal for drilling