HSS, PK12 Commonly used for low carbon, stainless and ferrous metals•Spiral flutes with a higher flute angle to remove chips more easily.#4 Type 240 Black Jobber Drill 118° Pt.
. Urrea industrial grade power bits are designed to provide high endurance and excellent performance in industrial applications demanding the highest quality. Intermediate-hardening heat treatment.Urrea power bit adapter, 50012, 4" long, 1/4" female hex drive drive, pin lock made with s2 steel.