27/64" x 6" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Part Number DWC5-530-145

Part Number DWC5-530-145

Part Number: 50C400FSHCSB

Part Number: EZ-21515

Part Number KFDMM13

Part Number DEW112180

27/64" x 6" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Part Number DWC5-530-145Product 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