11/64" x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Steel Split Lock Washers

Steel Split Lock Washers

Part Number DWRR16

Part Number DWDTS17/32

Part Number DWDTS1-37/64

Size 9/16"-20

11/64" x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Steel Split Lock WashersProduct 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