Double reinforced with industrial grit & glue for increased life & durabilityEasy to useManufactured in China
Master Mechanic, 5/16" x 4", extra length, masonry drill bit, 1/4" shank, positive point angle permits quick, accurate penetration, zinc surface finish, recommended for drilling cinder block, common brick, plaster & ceramic tile & for moderate use in hard brick, glazed tile & dry concrete, Carded.
Brand: Disston, Model: 120758