CMT Diamond Dry Hole Saw - 9/16" (14mm) Diameter with Hexagonal Shank is a professional-grade dry cutting tool engineered for drilling clean, precise holes through marble, granite, ceramic tile, and artificial stone surfaces. Featuring diamond grit with cubo-octahedral crystals, this hole saw delivers fast, accurate cuts in hard materials where standard hole saws struggle - making it a go-to choice for tile installers, countertop fabricators, and stone-working professionals who need reliable performance without the mess of wet cutting setups.

Key Features

• Diamond Grit with Cubo-Octahedral Crystals - these inclusion-free, heat-resistant diamond crystals cut faster and last longer than standard abrasive hole saws, reducing replacement frequency and downtime when drilling hard tile and stone.
• Dry Cutting Design - eliminates the need for water hookups or wet cutting equipment, letting you work efficiently in finished spaces, job sites, or situations where water access is limited.
• Hexagonal Shank - the hex shank locks securely into standard drill chucks and quick-change systems, preventing slipping under the high torque demands of drilling through granite, ceramic, or gres tile.
• 9/16" (14mm) Cutting Diameter - a precise, consistent bore size suited to faucet pilot holes, fixture mounting, and conduit pass-throughs in hard stone and tile countertops or floors.
• 1 3/8" Cutting Height - provides sufficient cutting depth to pass through typical tile, stone slabs, and countertop thicknesses in a single, controlled operation without the need to reposition.
• Recommended Operating Range of 2,200 - 4,000 RPM - staying within this speed range protects both the bit and the workpiece from heat buildup and chipping, extending bit life and keeping cuts clean.
• 3 1/8" Overall Length - compact enough to use with a standard cordless or corded drill (minimum 14V recommended) while maintaining enough reach for countertop and tile applications.

Why This Product

• When drilling marble, granite, or ceramic tile, a diamond-grit hole saw is the correct tool choice - standard bi-metal hole saws dull rapidly on these materials, while the diamond coating on this bit is specifically designed for hard stone and tile applications.
• The dry cutting capability means no water containment setup is required, saving setup time and protecting finished surfaces and cabinetry from water damage during installation.
• The hexagonal shank is a critical detail for high-torque drilling - it prevents the bit from spinning loose in the chuck when resistance increases mid-cut, which is a real risk when boring through dense granite or hard ceramic.
• At a 9/16" (14mm) diameter, this saw covers one of the most common pilot-hole sizes needed for faucet installations, fixture anchors, and utility pass-throughs in stone countertops and tile walls.

Specifications

• Manufacturer Part Number: 552-014
• Brand: CMT Orange Tools
• Diameter: 9/16" (14mm)
• Cutting Height: 1 3/8"
• Total Length: 3 1/8"
• Shank: Hexagonal
• Recommended RPM: 2,200 - 4,000 RPM

Approved Applications

• Drilling hard tiles - ceramic and gres
• Drilling hard stones - granite and marble
• Drilling artificial stones - such as Okite, Silestone, and Formica
• Pilot holes for faucet and fixture installations in stone countertops
• Pass-throughs and anchor holes in ceramic tile walls and floors