#22 x 12" Cobalt Aircraft Extension Drill Bit 6" Cobalt Aircraft Fractional Drills It has a 135° split

It has a 135° split point tip for fast and accurate drilling and is manufactured to Aerospace Standard 907 for superior quality

They are also suitable for drilling out broken bolts

Used for installing 1/4" Diameter Tapcon anchors using an SDS Plus hammer drill

Shank: 1/2"

#22 x 12" Cobalt Aircraft Extension Drill Bit 6" Cobalt Aircraft Fractional Drills It has a 135° splitDescription The M35 Cobalt Drill Bit is an extra long drill bit designed for drilling tough materials like stainless steel, Inconel, and titanium. It has a 135 split point tip for fast and accurate drilling and is manufactured to Aerospace Standard 907 for superior quality. The drill bit has a round shank that works with a wide range of tool holding systems. It displays high red hardness, allowing for speeds up to 30% faster than conventional M2 high