Vulcan 203380OR Cobalt Drill Bit Set, 21-Piece, 1/16"-3/8" Autumn_Cleaning scratch-resistant powder coat finish fits

scratch-resistant powder coat finish fits any closet in your home

9mm thickness

countersunk nail and screw holes

concrete must be dry prior to application

constructed from steel and solid brass

Vulcan 203380OR Cobalt Drill Bit Set, 21-Piece, 1/16"-3/8" Autumn_Cleaning scratch-resistant powder coat finish fits"VULCAN" DRILL BIT SET 21 Piece. Made with a special alloy of M35 steel with 5 percent cobalt. Use on very hard or abrasive materials. All sizes 3 16" and larger have 3 flats on the shank so that the drill chuck gets a better grip on the drill bit. Sizes 7 16" and 1 2" have 3 8" reduced shank. 135 degree split point. Contains 1 each: 1 16", 5 64, 3 32, 7 64, 1 8, 9 64, 5 32, 11 64, 3 16, 13 64, 7 32, 15 64, 1 4, 17 64, 9 32, 19 64, 5 16, 21 64, 11 32,