5/16"

Professional quality diamond core bits designed for easily boring the porcelain, marble and granite tile.  May be used dry or wet. Vacuum brazed d...

Diamond Sure bonded diamond core tile drill bits are designed to drill in the hardest surfaces or the most delicate and fragile. DiamondSure tile b...

Cut perfect holes in tile with your angle grinder.  These bits are high quality time savers! The RTC Hole Shot is a diamond core bit designed to be...