Industrial M42 grade steel with 8% cobalt for drilling in stainless steel, abrasive metals, and other hard to drill alloys

Pilot point, 135 deg (degree) split point design penetrates immediately and prevents walking

Parabolic flute design for improved heat dissipation and increased life

No spin shank eliminates bit slippage

Jobbers length

Sizes 7/16" and 1/2" have a 3/8" reduced shank