7/16" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Part Number GLBCOX1237

Part Number GLBCOX1237

Part Number DWTSR1316-548

Integrated Glove Clip

Part Number: 75C300BFL8P

Part Number CTH1812

7/16" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Part Number GLBCOX1237Product 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