Drillco Cutting Tools 9/16"" 135 DEG S&D DRILL BIT 1/2"" SHANK

Are of general purpose flute design but all sizes have a 1/2 by 2-1/4 long shank.˜ The maximum overall length is 6 and the flute length is 3.˜ This makes them short drills in the larger sizes and thus well suited to use in portable electric drills equipped with 1/2 chucks.˜ They are highly effective in tough high tensile strength materials.˜ The 135 degree split point reduces thrust and eliminates walking at the drill point.