Diamond hole saw set with M14 thread cuts clean, accurate holes in tile, granite, marble, porcelain, and other abrasive surfaces for fast, tidy installations. Six diamond-coated core bits cover common sizes for plumbing, anchors, and cable pass-throughs, while the open-slot body helps clear dust to reduce binding. Designed to connect to an angle grinder for controlled drilling and easier slug removal.

Stop fighting chipped edges and slow progress on dense surfaces. This diamond core drill bit set is built for repeatable openings in ceramics, granite, marble, and porcelain—ideal for bathroom and kitchen upgrades, backsplash work, and stone projects. Start with a pilot angle to guide the cut, then let the bit do the work while the slots carry away filings for cleaner results. Keep this multi-size kit on hand so you’re ready for the next install—grab yours today.