#51 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number ANC5-530-339

Part Number ANC5-530-339

Part Number GLBCOX129

Part Number CTC5-530-263

Part Number: EZ-41215

Pieces in Set 3

#51 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number ANC5-530-339Product 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