#28 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Teeth inside the cover lock

Teeth inside the cover lock the torque setting in place while you are using the wrench

Vibra-Tite #: 125

Part Number: VibraTite13110ml

Thread Size: M10-1

#28 x 12" Cobalt Aircraft Extension Drill Bit Quantity:1 Teeth inside the cover lockProduct 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