The CMT 552-012 Diamond Dry Hole Saw is a premium dry-cutting hole saw engineered for precision drilling through marble, granite, ceramic tile, and other hard stone materials. With a hexagonal shank for secure chuck engagement and a diamond grit cutting surface, this hole saw delivers fast, clean bores in demanding tile and stone applications - making it a go-to choice for professional tile setters, stone fabricators, and remodelers working with hard surfaces.

Key Features

• Diamond Grit Cutting Surface (Material: DP) - the diamond particle coating aggressively bites into marble, granite, ceramic, and hard stone, reducing cutting time and producing cleaner hole edges compared to carbide or bi-metal alternatives on these materials.
• Hexagonal Shank Design - the hex shank locks securely into standard drill chucks without slipping under torque, giving you consistent rotational transfer and better control during drilling.
• Dry Cutting Capability - engineered for dry use, eliminating the need for a constant water supply on the job site and making this hole saw practical for in-place tile and stone work where wet setups are inconvenient.
• 15/32 in. Cutting Diameter - sized precisely for common plumbing, hardware, and fixture rough-in holes in tile and stone surfaces, reducing the need for additional finishing or enlarging steps.
• 1 3/8 in. Cutting Height - provides sufficient depth capacity to cut cleanly through standard tile thicknesses and thicker natural stone slabs in a single pass.
• Recommended Operating Range of 2,200 - 4,000 RPM - the defined speed window keeps the diamond grit cutting efficiently and prevents overheating, helping extend the useful life of the blade.
• 3 1/8 in. Total Length - compact overall profile fits comfortably in tight spaces such as backsplash areas, shower surrounds, and countertop cutouts where tool clearance is limited.

Why This Product

• Drilling through hard natural stone like granite and marble requires a cutting tool specifically rated for those materials - the diamond grit construction of this hole saw is matched to the hardness of these surfaces, where standard hole saws would quickly dull or fail.
• The hexagonal shank provides a no-slip connection to the drill, which matters when applying consistent downward pressure on hard tile - a round shank can twist in the chuck at higher torque, causing inaccurate holes or bit damage.
• Dry cutting operation makes this hole saw usable with a standard cordless or corded drill without additional water-supply equipment, simplifying setup on renovation and remodel projects where running water at the work surface is not available.
• The 2,200 - 4,000 RPM operating range aligns with the output of most common drills, making this hole saw broadly compatible with tools already on the job site rather than requiring a specialty machine.

Specifications

• Manufacturer Part Number: 552-012
• Brand: CMT Orange Tools
• Diameter: 15/32 in.
• Cutting Height: 1 3/8 in.
• Total Length: 3 1/8 in.
• Shank: Hexagonal
• Blade Material: Diamond Grit (DP)
• Recommended Speed: 2,200 - 4,000 RPM

Approved Applications

• Drilling through marble and granite slabs
• Cutting holes in ceramic tile and porcelain (gres)
• Boring through hard artificial stone surfaces
• Creating fixture and hardware rough-in holes in stone countertops and backsplashes
• Plumbing and hardware installations in hard stone shower surrounds and floor tiles