Disston 1.3cm X 15CM Percussion Masonry Drill Bit

Master Mechanic, 1/2" x 6", rotary percussion, carbide tipped masonry drill bit, BLACK oxide, 3/8" 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 and hard brick, plaster, ceramic tile, glazed tile and wet or dry concrete and for moderate use in marble, granite and concrete over 6000 PSI, Carded.