1/4" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Grade: Class 8

Grade: Class 8

Part Number DULSA16

Part Number: M14C150HCS10Y

Each wrench includes a case

Part Number: M16X80DPAPL

1/4" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Grade: Class 8Product 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