The CMT 552-706 Diamond Dry Hole Saw is a precision dry-cutting tool built for drilling through hard tiles, natural stones, and engineered stone surfaces. With a 1/4" cutting diameter and a 5/8"-11UNC threaded shank, this hole saw mounts directly to angle grinders and delivers clean, accurate holes in materials that would quickly wear out standard bi-metal hole saws. Filled with cooling wax that melts during operation to manage heat at the cutting edge, the 552-706 is engineered for controlled dry cutting without the need for water cooling - making it a practical choice for tile and stone work on job sites where water management is a concern.

Key Features

• Diamond dry cutting design - rated for dry cutting without water, this hole saw uses diamond grit to grind through hard tile, granite, marble, and artificial stone without requiring a water source on site, keeping workflow fast and clean.
• Integrated cooling wax fill - wax melts during drilling to cool the blade and the workpiece, reducing heat buildup that can crack delicate stone surfaces or degrade the diamond bond, extending tool life between cuts.
• 5/8"-11UNC threaded shank - the standard 5/8"-11 thread mounts directly to most angle grinders, so there is no need for adapters or special arbors in typical shop or field setups.
• Right-hand rotation at up to 14,000 RPM - the tool is rated for high spindle speeds, giving it the range to perform efficiently across a wide variety of angle grinder models while maintaining cutting control in dense stone.
• 1-3/8" cutting depth (35mm) - sufficient cutting reach for standard tile and stone thicknesses, allowing full through-cuts in most slab and tile applications without repositioning.
• Suitable for hard tiles, stones, and artificial stones - compatible with ceramic, gres, granite, marble, and engineered stone surfaces, making this a versatile single-tool solution for mixed-material stone and tile drilling tasks.

Why This Product

• Dry cutting capability eliminates the need for water supply on site - the cooling wax fill manages heat internally, so this hole saw can be used in finished spaces or locations where wet cutting is not practical.
• The 1/4" diameter is a precise, small-bore size suited for fitting pipes, wires, or anchors through hard tile and stone where a larger cut would weaken the material or create cosmetic problems.
• The 5/8"-11UNC shank is a widely adopted angle grinder thread standard, so this bit integrates immediately with most existing equipment without requiring a dedicated machine or special tooling.
• Diamond grit construction is specifically matched to the hardness of materials like granite, marble, and artificial stone - materials that would chip, crack, or prematurely dull carbide or bi-metal hole saws.

Specifications

• Manufacturer Part Number: 552-706
• Brand: CMT Orange Tools
• Diameter: 1/4"
• Cutting Depth: 35mm
• Cutting Height: 1-3/8"
• Total Length: 2-3/8"
• Shank: 5/8"-11UNC
• Rotation: Right Hand (RH)
• Maximum RPM: 14,000
• Material: Diamond

Approved Applications

• Drilling through hard ceramic and gres tiles
• Cutting holes in hard natural stones including granite and marble
• Boring through artificial and engineered stones
• Dry hole cutting with angle grinders using a 5/8"-11UNC spindle