1/2 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Black & Gold Our M35 cobalt drills are

Our M35 cobalt drills are designed for easy drilling through the toughest materials

Engineered for performance

this M35 cobalt drill bit (5% cobalt) is designed to tackle tough

The reduced shank design makes it versatile

The exclusive single radial concave flute creates perfectly round holes in metal

1/2 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Black & Gold Our M35 cobalt drills areDescription 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