The ZENESIS™ Obsidian diamond core bit is the most versatile tile and stone core bit ever made. New technology allows this bit to drill perfectly clean holes in porcelain(porcelain paver), all natural stone(granite/marble/sandstone), engineered stone, ceramic, DEKTON® approved, and quartzite dry or wet!* Exclusive ZENESIS™ pattern diamond segments give up to 70% longer life over random pattern segments. Unique drop segments for added durability and weld protection. (*Based on the company’s internal testing) Features: Arbor Size: 5/8”-11 thread fits all grinders and polishers First core bit ever with depth gauge lines at 20mm and 30mm Brazed diamonds on the outside and inside of the barrel prevent binding and make it easy to remove the plug
