#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number DMS04-1140

Part Number DMS04-1140

Round shank for use in a wide range of tool holding systems

This set includes four easy-access rolls that keep the pliers securely in place

Part Number DWDDL12X5/16

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

#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Part Number DMS04-1140Product 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