#40 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Pieces in Set 15

Pieces in Set 15

slender nose reaches deep into tight spaces and grasps small parts • Thin

This set includes modular wrench organizers that fit most toolbox drawers

Permanent Connection – Bits are pressed directly into the socket for a permanent connection that won't loosen over time or under stress • Large

Part Number D/A3F31/32

#40 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Pieces in Set 15Product 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