The ZENESIS™ Obsidian diamond core bits are the most versatile tile and stone core bit ever made. New breakthrough technology allows this bit to drill perfectly clean holes in porcelain & ceramics, all natural stone, engineered stone, ceramic, and clay tile & brick. Exclusive ZENESIS™ pattern diamond segments, factory-tested, demonstrate up to a 70% longer life over conventional random pattern segment core bits. OBSIDIAN core bits include drop segments for added durability and protection.
