#42 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Two wings on the base

Two wings on the base of the shank help it resist being twisted or pulled out of the handle during use

Part Number: BIT-DMS04-1044

Part Number: Assortment Kit #257

creating a solid connection that is stronger and straighter than simply pressing the shank into a premade handle • Phillips Tip – Our Phillips tips are made to the ISO 8764-1 standard

#42 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com Two wings on the baseProduct 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