Groo-V Tip Granite, Marble and Porcelain Multi-Purpose 5-Piece Bit Kit

• TILE • MARBLE • GRANITE • PORCELAIN • MASONRY • CAST IRON • HARDENED STEEL • Designed for Drilling Marble, Granite, Porcelain Tile, Hard Metal, Plastic, Wood, Masonry Percussion or rotary-only, the Groo-V Tip bit makes holes in almost all materials! Engineered for drilling hard materials, these specialized Ram Tip Bits have a serrated carbide tip, which penetrates faster - up to 50% faster than standard masonry bits! Kit Contains: 3/16" x 6" Groo-V Tip Multi-Purpose Drill Bit 1/4" x 6" Groo-V Tip Multi-Purpose Drill Bit 5/16" x 6" Groo-V Tip Multi-Purpose Drill Bit 3/8" x 6" Groo-V Tip Multi-Purpose Drill Bit 1/2" x 6" Groo-V Tip Multi-Purpose Drill Bit Note: A drill press - supported drill motor is recommended for drilling hard metal. Shank Diameter 3/8" and larger have 3 flats on the shank to reduce the possibility of slipping in the chuck.