#19 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number: Assortment Kit #277755

Part Number: Assortment Kit #277755 Pieces - Fine Thread

Part Number D/AMMCO15

Part Number T/A54818

Part Number: EZ-303-720

Part Number D/A3F53/64

#19 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number: Assortment Kit #277755Product 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