Recommended speed 8000RPM, maximum speed 13200RPM High Performance]Vacuum Brazed Technology provides longer working life than Electroplated saw blade. High-quality diamond grit #40/50 provides fast and smooth cutting and grinding 【Size】Diameter 115mm; diamond height 25mm; segment thickness 2., 5mm; diamond grit #40/50, M14 thread FOCSTOL Diamond Tile Saw Blade - 4''(105mm) Double Side Cutting Grinding Disc Wheel for Vacuum Brazed Blade For Tile Grinding FOCSTOL Diamond Saw Blade 1pc 100/115/125mm Concrete Cutting Grinding Disc Double Side Hexagon Cutter Ceramic Tile Granite M14 - 1420 Multi Tool Blade Dry or Wet cutting/grinding. FOCSTOL Diamond Tile Saw Blade - 4.5''(115mm) Cutting and Grinding Disc Wheel for Porcelain Ceramic Tile Marble Granite Artificial Stone Quartz 【Special Design】With eight flange holes, the flange can be installed on both side, both side can be used efficient, lower cost 【Application】Ideal for dry or wet cutting/grinding of Granite Marble Porcelain Ceramic Tile Artificial stone Quartz, etc