Item: BGTEC Electroplated Single-side Diamond Cutting Grinding Disc Saw Blade Grit: #40/50 Connection: 5/8-11 or M14 Flange Specification: Diameter 4’’/105mm, 4.5’’/115mm, 5’’/125mm; diamond blade thickness 2.6mm Application: 1.Cutting & Grinding for Granite, Marble, Artificial Stone, Ceramic Tile, Porcelain Tile, Quartz, etc. 2. Dry or wet use, suitable for angle grinder. Feature: 1. Cutting & Grinding: 2 in 1 Design - Cutting and grinding an be done only with one saw blade 2. High quality diamond: Fully diamond coated edge & hexagon spots, provide fasting cutting and grinding, increase efficiency Note: Size Recommended RPM Maximum RPM 4’’ 9000 15000 4.5’’ 8000 13200 5’’ 7000 12000 Customize service: If you order more than 20pcs of same specification,we could mark your LOGO on our products.Please leave us a message.