Brute S-23 Thin wall core bits. Designed for a long lifespan, fast coring speeds in Granite, engineered stone, porcelain/tile. The thin wall tile bits provide extremely clean, accurate, and chip-free cutting in a variety of materials. Typically used for wet coring of porcelain, ceramic tile, and stone. Sizes include 3/8", 1/2", 3/4", and 7/8"