#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 This set includes a stacking

This set includes a stacking tool box with a 6-cavity parts tray and a lid insert

Part Number D/A3F63/64

Part Number: Assortment Kit #207232 Pieces - Coarse Thread

Part Number DMS04-1140

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

#40 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 This set includes a stackingProduct 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