Non-Coring Diamond Bits. Professional Quality, available in sizes 1/4″ 6mm, 5/16″8mm, 3/8″ 10mm, 1/2″ 12mm, 5/8″15mm, and these Non-Coring Diamond Drill Bits provide rapid, efficient, and clean drilling outcomes through materials such as granite, marble, quartz, quartzite, hard porcelain, and Dekton. They offer exceptional on-site drilling accuracy for small diameter holes. Features a 5/8″-11 threaded arbor.
