Feature●For use in work hardening grades of stainless steel & other hard metals.●One piece solid construction●Special Hi-Molybdenum tool steel●Body & clearance are gold surface treated for max lubricity.●Made in the U.S.ADescription Silver & Deming Drill Bit. Uses a 1/2" Reduced Shank. Comes with a 135 Degree Split Point & 3 Flats on the Shank.