#52 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Precise 6-point and 12-point openings

Precise 6-point and 12-point openings provide an exact fit for hex fasteners

the teeth are hardened to 45–50 HRC and should not chip or strip even on fasteners up to Grade 8 or Class 12

The case provides safe transport for the torque wrench and protects it from drops

Part Number: 50F700HCSSS

Part Number DWDTS1-15/64

#52 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Precise 6-point and 12-point openingsProduct 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