1-3/8"

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

Helix Hellion dry core diamond bits grind through porcelain tile like a hot knife through butter. No water needed...ever. Extremely long lasting an...

Usage: wet and dryMaterials: all types of ceramic and porcelain stoneware, single-fired, klinker, terracotta, granite and marble.Applications: furn...

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...

If you are looking to bore holes in hard porcelain, glass, or granite tiles, look no further! The Porcelain Pro bit stands out from its competition...