M35 5% Cobalt Drill Bits Set 115PCS 1/16-1/2 A-Z 1-60 Straight Shank Jobber
PROFESSIONAL AND WIDELY USED? M35 Cobalt High Speed Steel is more suitable for hardening materials. Not suitable for glass or ceramic materials. ? TWIST DESIGN AND PERFORMANCE? Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank.