1/2 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Black & Gold high-tensile materials with ease

high-tensile materials with ease

and inconel with ease

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

and other difficult-to-drill materials

Drill America's KFDMM Series Black & Gold drill bits are made from M2 High-Speed Steel (HSS) and are ideal for drilling aluminum

1/2 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Black & Gold high-tensile materials with easeDescription 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