Ball Bur SD, Double Cut, Shank Dia. 1/4 in, Head Dia. 7/16 in, Length of Cut 3/8 in, Overall Length 2-1/8 in, Trade Number SD-4, Abrading Application Build Up Welding Preparation, Contouring, Hole Deburring, Metalworking, Coating Bright (Uncoated), Head…