#1 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Cobalt They work well in piercing

They work well in piercing through inconel

These COHEX Series m35 5% cobalt drill bits are specifically designed for use in hand-held and impact drills

1/4" quick change hex shank

high-tensile strength materials such as aluminum

The 135° split point tip allows for fast and accurate drilling

#1 x 12" Cobalt Aircraft Extension Drill Bit Hex Shank Cobalt They work well in piercingDescription 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