11/64" x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 press the button beside the

press the button beside the keyhole latch and slide the rail out

each Tekton 6-in-1 Driver contains four bit sizes and two nut driver sizes

Drill Size: 7/8"

Part Number DWCT212A

Part Number STE3

11/64" x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 press the button beside theProduct 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