Diamond Cup Grinding Wheel 4'' Double Row Heavy Duty Turbo Row Concrete Grinding Wheel Disc for Angle Grinder Polishing and Cleaning Stone Cement Marble Rock Masonry Granite Concrete. Orange

Diamond Cup Grinding Wheel Heavy Duty Concrete Grinding Wheel for Angle Grinder, Granite, Stone, Marble, Masonry, Concrete Specification: Material: HHS Production process: sintering Color: Silver Outer diameter: 100 mm /4 inches Inner hole diameter: 20mm / 0.79 inches (without metal ring) Inner hole diameter: 16mm / 0.63 inches (with metal ring) Thickness: 5 mm / 0.2 inch Not threaded High-Grade Diamond:High diamond concentration for long life and aggressive material removal. Large grinding segments with heat-treated steel bodies which provide increases durability and wheel life. How to Use It Properly? 1. Strictly follow the instructions in the machine manual. 2. Do not install a diamond dish/cup wheel that is too loose or too tight on the flange. 3. Tighten only with the tool provided with the machine. 4. Be sure to hold the wheels properly to prevent slipping, but do not use excessive force. Never use a hammer. 5. Keep flanges and threads clean without burrs and rust. 6. Before installing the wheel, please replace the deformed or damaged flange. Widely Application Suitable for dry or wet grinding of concrete, granite, stone, marble, tile, masonry and some other construction material to smooth uneven surfaces and remove flashing. Warning: 1. Never remove the machine's protective cover and make sure it is properly adjusted to keep debris away from you. 2. Make sure that no one else is in danger, especially near the machine while working. 3.Please protect yourself when start cutting!We recommend the following personal protective equipment. ->Eye protection ->Ear protection (earmuffs) ->Hand protection (gloves) ->Lung protection (dust mask)