The CMT 552-001-05 5-Piece Diamond Dry Hole Saw Set by CMT delivers precise, clean-cut drilling through hard tiles, natural stone, and artificial stone surfaces. Engineered with diamond grit coated cutting edges, this set of five hole saws covers the most commonly needed sizes for professional tile and stone work - from 3/16 in. up to 1/2 in. - making it a versatile kit for contractors, installers, and serious tradespeople who need reliable performance across a range of drilling diameters. Each bit features a hexagonal shank for secure, slip-free seating in standard cordless and corded drills, and the dry-cut design means no water cooling setup is required.

Key Features

• 5-Piece Size Assortment (3/16 in. / 1/4 in. / 5/16 in. / 3/8 in. / 1/2 in.) - covers the five most practical hole diameters in a single kit, reducing the need to purchase individual bits and giving installers flexibility across multiple projects and materials.
• Diamond Grit Coated Cutting Surface - hard diamond crystals embedded in the cutting edge slice through dense ceramic, gres tile, granite, marble, and artificial stone cleanly and efficiently, reducing chipping and extending bit life compared to standard carbide options.
• Hexagonal Shank Design - locks securely into standard drill chucks to prevent slipping during operation, improving control and cut accuracy when boring through hard, brittle stone surfaces.
• Dry-Cut Operation - no water cooling or wet setup required, simplifying workflow on the job site and making these bits practical for use in locations where water access is limited.
• Recommended Speed Range of 2,200 - 4,000 RPM - a defined operating range helps users dial in the correct drill speed for clean, precise cuts and helps protect the diamond coating from premature wear caused by running at incorrect speeds.
• Minimum 14V Cordless Drill Recommended - compatible with a wide range of corded and cordless drills meeting the voltage threshold, giving tradespeople flexibility in tool selection without requiring specialized equipment.

Why This Product

• When drilling through hard gres tile, granite, marble, or engineered stone like Silestone, Okite, or Formica laminate, a standard steel hole saw will fail quickly - the diamond grit coating on each bit in this set is specifically suited to cutting these demanding materials without burning out the cutting edge.
• The five included sizes (5mm, 6mm, 8mm, 10mm, and 12mm) address the most common small-diameter hole requirements for tile and stone installation, eliminating the guesswork of buying individual bits and keeping the total kit cost lower than purchasing each size separately.
• The dry-cut capability means this set is practical for in-place tile work, bathroom renovations, countertop installations, and other applications where flooding the work area with cooling water is not feasible or desirable.
• With a hexagonal shank for anti-rotation grip and a speed range of 2,200 - 4,000 RPM, the set is matched to equipment most professionals already own - a standard drill meeting the 14V minimum - keeping startup costs and equipment investment low.

Specifications

• Manufacturer Part Number: 552-001-05
• Brand: CMT Orange Tools
• Pieces: 5
• Included Sizes: 3/16 in. (5mm), 1/4 in. (6mm), 5/16 in. (8mm), 3/8 in. (10mm), 1/2 in. (12mm)
• Blade Material: Diamond Grit Coated
• Shank Type: Hexagonal
• Speed Range: 2,200 - 4,000 RPM
• Minimum Recommended Tool: Cordless Drill, 14V minimum

Approved Applications

• Drilling hard ceramic and gres tiles
• Drilling granite and marble stone
• Drilling artificial stone surfaces including Silestone, Okite, and Formica

What's Included

• 1x CMT 552-005 Diamond Dry Hole Saw - 5mm (3/16 in.)
• 1x CMT 552-006 Diamond Dry Hole Saw - 6mm (1/4 in.)
• 1x CMT 552-008 Diamond Dry Hole Saw - 8mm (5/16 in.)
• 1x CMT 552-010 Diamond Dry Hole Saw - 10mm (3/8 in.)
• 1x CMT 552-012 Diamond Dry Hole Saw - 12mm (1/2 in.)