POWERTEC Porcelain Diamond Blades These blades are designed with a wobble-free thick center to avoid vibration, allowing you to cut in straight lines, and they're made to withstand extremely high temperatures. The blade possesses a heavy-duty steel construction for minimal chipping and long-term durability. Features Designed for cutting porcelain, ceramic tile, thin granite, marble and masonry, engineered stone, brick, slate, and cement backer board. Suggested thickness is less than 1/2 inch X-teeth turbo mesh diamond rim for smooth, rapid, and consistent tile cutting Thin blade for faster cuts with minimal chipping These blades are designed for wet and dry cutting POWERTEC Porcelain Diamond Blades Model 14002 14000 14001 Blade Size 4" 4-1/2" 7" Rim Height 1.3 mm 1.3 mm 1.3 mm Arbor 5/8" - 7/8" - 20 mm 5/8" - 7/8" - 20 mm 5/8" - 7/8" - 20 mm Max RPM 13000 13000 8700 Material Performance Ceramic Excellent Porcelain Excellent Marble Excellent Granite Excellent Hard Granite Good Glass Not Recommended