MAXIMUM Diamond Hole Saw Set, 7-pc Canadian Tire- 3.5 inch diamond hole saw ,MAXIMUM Diamond Hole Saw Set Set features special teeth designed for fast cutting. For cutting granite, porcelain, ceramic, marble, glass tiles, terracotta and natural stone. Black nickel finish for longer life. Wet cutting only, please use water cooling system. Includes an ABS box with thermoplastic rubber grip. Durable case for long-lasting use.Diamond Core Drill Bits from Applied Diamond ToolsOur Monster Dry/Wet Diamond Core Bits are widely accepted and used for drilling granite, engineered stone and concrete, while our Monster Vacuum Brazed Diamond Core Bits and other types brazed diamond core bits are most suitable for drilling marble, porcelain, ceramic, fiber glass and even metal. Monster Dry/Wet Diamond Core Bits. 1-3/8" @$39.50.