1/4" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Each wrench includes a case

Each wrench includes a case

and chisels in an open top drawer and stacking drawer rack

Part Number DWRR54

Pieces in Set 60

Part Number DULSA16

1/4" x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Each wrench includes a caseProduct 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