CMT Diamond Dry Hole Saw - 3/8" Diameter is a precision dry-cutting hole saw built for drilling through hard tiles, natural stones, and engineered artificial stones without the need for water cooling. Designed for use with an angle grinder via a 5/8"-11UNC threaded shank, this tool brings professional-grade ceramic and granite drilling capability to tile setters, countertop fabricators, and stone tradespeople. The CMT 552-710 combines diamond abrasive technology with an integrated cooling wax system, making clean, accurate holes in demanding hard-surface materials faster and more manageable than conventional drill bits or standard hole saws.

Key Features

• Diamond Dry Cutting Design - purpose-built for dry use without water, so you can drill hard tile, granite, and artificial stone on the job without setting up a wet cutting station or managing water runoff.
• Cooling Wax Fill - the hole saw is filled with cooling wax that melts during drilling to dissipate heat at the cutting interface, protecting both the diamond grit and the workpiece surface and extending the usable life of the blade.
• 5/8"-11UNC Threaded Shank - the standard 5/8"-11 thread mounts directly to angle grinders equipped with a matching spindle, giving you a secure, vibration-resistant connection with no adapter required on compatible tools.
• 3/8" Cutting Diameter - creates a precise, small-diameter hole ideal for plumbing pass-throughs, hardware anchors, and fixture mounting in hard tile and stone surfaces where accuracy matters.
• 1-3/8" Cutting Depth (35mm) - cuts through tile, stone slabs, and thick countertop materials in a single pass, reducing the need for repositioning or multiple tool changes on full-thickness material.
• Right-Hand Rotation at up to 14,000 RPM - matched to standard angle grinder rotation direction and capable of reaching high spindle speeds for efficient material removal in dense stone and ceramic substrates.
• Suitable for Hard Tiles, Stones, and Artificial Stones - engineered specifically for ceramic, gres tile, granite, marble, and engineered stone surfaces, so you get consistent results across the hardest common countertop and wall tile materials.

Why This Product

• For tradespeople who need to drill small, clean holes in granite, marble, or hard ceramic tile, the dry-cut diamond design paired with built-in cooling wax removes the usual requirement for a water supply at the work surface - practical for on-site kitchen and bath installations.
• The 5/8"-11UNC shank is the industry-standard angle grinder thread, meaning this hole saw mounts to the tools most tile and stone tradespeople already own without purchasing additional adapters.
• At a 3/8" diameter, this is a specialized size for small-diameter penetrations - pipe stubs, fixture anchors, and hardware pass-throughs - in hard stone where a standard masonry bit would chip or crack the material.
• The 35mm (1-3/8") cutting depth allows the saw to work through thick natural stone slabs and engineered countertop surfaces in a single setup, which reduces tool handling time and improves hole accuracy on thick stock.

Specifications

• Manufacturer Part Number: 552-710
• Brand: CMT Orange Tools
• Diameter: 3/8"
• Cutting Depth: 35mm
• Cutting Height: 1-3/8"
• Total Length: 2-3/8"
• Shank: 5/8"-11UNC
• Maximum RPM: 14,000
• Rotation: Right-Hand (RH)
• Material: Diamond (DP)

Approved Applications

• Drilling hard ceramic and gres tiles
• Drilling hard natural stones including granite and marble
• Drilling artificial and engineered stones