#33 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com clear die-stamped size marking is

clear die-stamped size marking is easy to read and can’t wear off • Four detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pin • Polished

drive (10 - 100 ft-lb)

Size 3/8"-60

Grade: High Speed Steel

Part Number BRCT207

#33 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com clear die-stamped size marking isProduct 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