Wide Application: Designed for toughness, precision and longer life, Revvstark grinder cut off wheels are ideal for use with metal materials such as rebar, steel, iron and INOX; Fits all brands of die grinders, angle grinders with 7/8 (22., 23 mm) arbors Bought the double pack of 4 1/2 diamond board and after maybe 30 minutes of cutting over 2 days the blade fell apart. The diamond material flaked off leaving the bare metal blade 4 1/2 Inch Cut Off Wheel Diamond Cutting Wheel 4 1/2 Inch with 7/8 Arbor, Carbide Cutting Wheel, Angle Grinder Cutting Disc for Metal with 5000+ Cuts on Rebar, Steel, Iron and INOX-3 Pack NINEROARS 4.5 Inch Cut Off Wheel for Wood, Laminate, Plastic, Plaster, Rubber Angle Grinding Wheel - Electroplated Diamond - 4 1/2 3 Pack Diamond Cutting Wheel 4 1/2 Inch With 7/8 Arbor, Carbide Cutting Wheel, Angle Grinder Cutting Disc, 4 1/2 Cut Off Wheel For Metal With 5000 Diamond Cut-off Wheel Extra Long Life and Durability: Industrial grade material cut metal up to 5,000 times with a life span of 120 times longer, making it more durable, higher productivity, less downtime and lower cost per cut 4 Inch Bosch Diamond/Marble/Wall Cutting Wheel at Rs 90/piece in Chennai Efficient and Precise Metal Cutting: 1., 2 MM ultra-thin substrate design reduces cutting resistance, improves blade sharpness, and maintains original cutting blade diameter throughout its service life for better control, reach, and accuracy; Wider and denser diamond coated cutting edge provides more cutting efficiency Specifications: Revvstark diamond cutting wheel diameter 4-1/2 in (115 mm), hole diameter 7/8 in (22., 23 mm), thickness 0., 047 inch (1., 2 mm); The maximum safe operating speed is 13,300 RPM
