Diamond Cutting Wheel 4-1/2 Inch for 7/8 Inch Arbor Angle Grinder, 4.5 Inch Cut Off Wheel with 5000+ Cuts on Rebar, Steel, Iron and INOX Product Features: Diamond Technology Cutting Wheel - sharp and wear-resistant Upgraded Brazing Technology - diamond-coated blade for an indestructible, heat resistant bladeUltra-thin blade edge design - reduces cutting resistance & improves blade sharpnessCircular Holes Designed On The Edge - enhanced heat dissipation, less sparks, and dust removalLong Service Life (up to 5000 cuts) - reduce cutting costs The Best Choice For Metalworking 4.5 inch cut off wheel can cut a variety of metal materials quickly, cutting metal more than 5000 times. Wide Application Diamond Cutting Wheels are not only suitable for cutting rebar, alloy steel, iron and INOX, metal plate less than 5mm, rebar less than 25mm, various types of pipes and sheet metal. (Not suitable for cutting thick metal). But also suitable for colored steel tiles, ceramic, marble, granite and PVC pipes. Tips: Please wear goggles, protective mask, safety shoes and work clothes when operating. During cutting, stopping cooling appropriately can increase the service life of the blade. Product Specification: Material: Diamond high manganese steel matrix Disc Outer diameter: 4.52" (115mm) Disc Inner hole: 0.87" (22.23mm) Disc Thickness: 0.047" (1.2mm)Compatible with all 4.5" angle grinders and 7/8" (22.23 mm) arbors.