#30 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com • Adapter expands your range

• Adapter expands your range for sockets and accessories • Knurled bands on the extensions provides grip for starting or turning loosened fasteners with fingertips • Smooth

the Type "D" cobalt drill will have a significantly greater tool life than the NAS 965 Type B high speed steel adapter drill

Each chisel is individually heat treated to harden and strengthen the tip while maintaining the soft temper of the striking end

Duraclad reinforced rope channel and thumb

Shape Corner Rounding

#30 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com • Adapter expands your rangeProduct 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