7/16" x 6" Cobalt Aircraft Extension Drill Bit Quantity:1 Tekton L-keys are made with

Tekton L-keys are made with 8660 nickel chromium molybdenum steel that's heat-treated to 54–58 HRC to produce tools that are hard

Size: 41/64"

Number of Compartments: 18

Part Number DMODO

Part Number: 62C350WASS/316

7/16" x 6" Cobalt Aircraft Extension Drill Bit Quantity:1 Tekton L-keys are made withProduct 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