Diamond Core Bits for Granite & Stone Fabrication
Clean, precise sink cutouts start with the right diamond core bits. Basic Diamond carries a full range of core bits for granite, marble, porcelain, and engineered stone — including segmented core bits for fast material removal and thin wall core bits for cleaner holes with less chipping. Whether you're drilling faucet holes or full sink openings, our core bits are built to hold up through high-volume shop use without sacrificing accuracy.
