12.00mm Cobalt Jobber Length Drill Bit, D/ACO Series BoltsandNuts.com Drill America Tap and Drill

Drill America Tap and Drill Bit Kit in Pouch Case

Cobalt screw machine drills (also know as stub or stubby drills) are manufactured to Aerospace Standard 907

Part Number KFD3F1-5/16

Part Number D/ACOV

Part Number DMOD16

12.00mm Cobalt Jobber Length Drill Bit, D/ACO Series BoltsandNuts.com Drill America Tap and DrillProduct 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. These drill bits are jobber (standard) length with a round shank for use in a wide range of tool holding systems. They have a 135 split point tip for fast penetration and