Relton GRT-6-12 3/8" X 10" DD Carbide Granite Drill Bit with 1/4" Shank Groo-V Tip

Specially designed for drilling Extra-Hard materials, this modified ram tip bit has a serrated-edge carbide allowing it to penetrate much faster than a standard masonry bit. When drilling hard-metal, it is best to use the bit in a drill press or in a drill motor supported to provide steady drilling speeds under load. Use on Materials: Tile, Hard Metal, Plastic, Wood, Marble, Granite, Masonry. DIAMETER: 3/8" SHANK DIAMETER:3/8" OVERALL LENGTH:12" DRILL DEPTH:10" PART#:GRT-6-12