1-Inch Diamond Hole Saw Bits — Wet/Dry Core Drill

A diamond hole saw cuts circular openings in tile or stone using a cylindrical diamond-edged cup, typically used for plumbing or fixture cutouts. A diamond core bit is a tubular drill designed for deeper, structural core drilling through stone, concrete, or masonry with arbor-threaded shanks for angle grinders or core drill rigs.

Yes, 1-inch diamond hole saw bits are suitable for porcelain tile. Products like the DI Tool Diamond Hole Saw and Shark Series Pro Bit are specifically rated for porcelain. Using water cooling during cutting prolongs bit life and reduces heat-related cracking in dense porcelain surfaces.

Wet operation is preferred for extended jobs as water cools the bit, clears debris, and significantly extends diamond segment life. Dry operation is convenient for quick tasks or where water is impractical. DI Tool's Shark Series Pro Bit and Diamond Hole Saw both support wet or dry use, offering maximum flexibility.

DI Tool's 1-inch diamond hole saw bits are compatible with tile, porcelain, ceramic, granite, marble, natural stone, and masonry. The Core Bit – Stone also handles heavy steel-reinforced concrete. Always match the bit's material rating to your substrate to achieve optimal cut quality and bit longevity.

DI Tool's Core Bit – Stone accepts 5/8"-11 and 1-1/4"-7 arbor threads, compatible with most standard angle grinders and core drill machines. The Diamond Hole Saw and Shark Series Pro Bit use standard shank configurations. Always verify your drill's arbor thread before purchasing to ensure compatibility.

Use water cooling whenever possible, avoid excessive downward pressure, and let the diamonds do the cutting work. Start at low RPM and gradually increase speed. Clean the bit after each use and store it dry. DI Tool's Vacuum Braze technology ensures diamonds remain firmly bonded, maximizing usable lifespan even under demanding conditions.