M-2 high speed steel for strength, heat resistance, and wear resistance in general drilling of wood, metal, and plastic. The 3/8" reduced shank fits all 3/8" drills. Jobber length.
BIT CLAY SPADE SDS MAX
BIT BORE SPADE 7/8X16
BIT HSS DRILL BIT 3/8 BULK
BIT 25/64 RD SHANK