Vulcan 201681OR Drill Bit, 1/4 in Dia, 4 in OAL, Percussion, Spiral Flute, Straight Shank

Negative carbide tip for rotary and percussion drilling. All sizes 3/16 in and larger have 3 flats on the shank so that the chuck gets a better grip on the bit. Wide flutes quickly move out debris and dust. For drilling brick, stone, concrete, ceramic and damp and dry masonry work.