#17 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Flute Length: 1-3/4"

Flute Length: 1-3/4"

Part Number: BIT-DWTHSHEX3824

Finish: Zinc Yellow

Part Number: EZ-32220

Part Number: BIT-DWTHSHEX1213

#17 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Flute Length: 1-3/4"Product 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