CRL 3/8" Groo-V® Tip Granite, Marble, and Tile Drill Bits - GRT38
Engineered for drilling hard materials, these specialized CRL Groo-V® Tip Granite, Marble, and Tile Drill Bits are especially suited for drilling small holes when used with percussion or rotary drill machines only. They have a serrated carbide tip which penetrates up to 50% faster than ordinary masonry bits. Use with percussion and rotary drills only. These straight shank drills are available in four sizes.