Diamond Hole Saw Set, 5-Piece M14, 22–65 mm for Tile, Granite

Diamond hole saw set with M14 thread delivers clean, accurate cutouts in tile, granite, marble, and porcelain—ideal for fast installation with an angle grinder. Rugged diamond grit and a thin 1.4 mm blade help reduce chipping, while body vents clear dust during high-speed drilling. Designed for controlled starts with a pilot hole to minimize wandering and keep openings smooth for plumbing, fixtures, and countertop work.

• Includes 5 core drill bits: 22/35/40/50/65 mm for common cutout sizes in stone and ceramic


• Fits M14 thread angle grinders for quick setup on most standard grinder spindles


• Delivers cleaner edges with 1.4 mm blade thickness to help limit cracking and chip-out


• Clears debris via side vents to support faster cutting and easier slug removal


• Stores securely in a compact carry case to keep sizes organized between jobs

Built for hard, abrasive surfaces, this diamond core bit kit is a practical choice for drilling faucet holes, pipe pass-throughs, and hardware mounting where accuracy matters. The diamond abrasive outperforms traditional carbide-style options on dense materials, helping you maintain consistent results across multiple hole sizes. Use water cooling when possible and start with a pilot to keep the bit steady and extend working life. Grab yours today and keep the right size ready for every tile and stone cutout.

• Set size: 5 pieces


• Bit diameters: 22 / 35 / 40 / 50 / 65 mm (0.87 / 1.4 / 1.6 / 2 / 2.5 in)


• Mounting thread: M14


• Blade thickness: 1.4 mm


• Package dimensions: 20 × 18 × 10 cm (7.9 × 7.1 × 3.9 in)


• Gross weight: 1.4 kg (3.09 lb)