The CMT 552.701.06 Diamond Dry Hole Saw Set is the professional's go-to for clean, effortless drilling in ultra-hard materials like porcelain tile, glass, stone, and masonry—where standard hole saws fail. This 6-piece Italian-engineered kit features diamond grit edges for superior grip and lifetime (2–3x longer than carbide), plus a precision plastic guide and hex adapter for electric drill compatibility. Sizes from 1/4" to 1/2" handle everything from small plumbing holes to electrical knockouts, with dry-cutting capability and optional water cooling for extended performance. Say goodbye to slippage and overheating—perfect for plumbers, electricians, and tile pros demanding flawless results every time.

• Diamond grit edge technology – Grips and cuts ultra-hard materials like tile, stone, glass & masonry without slippage

• Superior lifetime – 2–3× longer than conventional carbide hole saws for high-volume pro use

• Precision sizes: 1/4" (6mm), 5/16" (8mm), 3/8" (9.5mm), 1/2" (12mm) – Ideal for plumbing, electrical & small knockouts

• Includes plastic drill guide (552-GUIDE) – 7-hole template for stability and accurate starting on curved surfaces

• Hexagonal adapter (552-EX16) – Fits standard electric drills; disable hammer mode for optimal dry cutting

• Dry-cut design with orbital motion recommended – Runs cool; add water for even longer life in tough jobs

• Compatible with corded/cordless drills – Lightweight, versatile for tile installers, plumbers & electricians

• Outperforms basic diamond bits in grip, heat resistance & clean edges

• 4.9/5 stars from 1,200+ reviews – “Cuts porcelain like butter—no chipping!”

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