#33 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com 968 Pieces - Coarse &

968 Pieces - Coarse & Fine Thread

Body Dia 2-7/8"

Part Number DWTSR1-1214

Part Number: 50X400DPSS

Size 3/8"-60

#33 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com 968 Pieces - Coarse &Product 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