1/2" 82° HSS 4-Flute Countersink 82° Weldon Countersinks (Piloted) it runs up to 30%

it runs up to 30% faster than standard M2 high speed steel

135° split point tip for fast

These are jobber (standard) length drill bits with a 1/4" Hex Shank for quick change impact drivers

Their high red hardness allows for speeds up to 30% greater than conventional M2 high-speed steel and the 135° split point tip ensures fast and precise drilling

1/2" 82° HSS 4-Flute Countersink 82° Weldon Countersinks (Piloted) it runs up to 30%Specifications SIZE 1 2" OVERALL LENGTH 3 7 8" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1 2" NUMBER OF FLUTES 4 SHANK TYPE ROUND CUTTING ANGLE 82 SUGGESTED PACK QTY 1 4 flute countersinks, also known as machine countersinks, can be used to enlarge existing holes. All 4 flute countersinks have a 1 2 inch shank.