Double reinforced with industrial grit & glue for increased life & durabilityEasy to useManufactured in China
Master Mechanic, 5/8" x 6", rotary percussion, carbide tipped masonry drill bit, BLACK oxide, 1/2" shank, negative point provides faster penetration when used with hammer drill or drill in percussion mode, percussion carbide tipped bits have beveled edge, recommended for drilling cinder block, common & hard brick, plaster, ceramic tile, glazed tile & wet or dry concrete & for moderate use in marble, granite & concrete over 6000 PSI, Carded.
Brand: Disston, Model: 691253