#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 • Knurled band provides grip

• Knurled band provides grip for starting or turning loosened fasteners with fingertips • Polished

The flared ends of the handles help prevent them from slipping out of your hands

Includes no skipped sizes: 1/4-13/16 inch (SAE) 45-degree offset box end combination wrenches

Part Number D/A3F63/64

Part Number DEWCHAT3/8-100

#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 • Knurled band provides gripProduct 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