Description Crafted for fast cutting and long life, DeWALT-type 1 HP metal cutting wheels feature a thin 0.045 in wheel design for quick, burr-free cuts and a proprietary material mix for extended wheel life. Aluminum oxide grain delivers aggressive cutting action. 2 full sheets of fiberglass offer durability and safety.Thin .045" wheel design for fast burr free cuttingProprietary aluminum oxide grain combination for aggressive cutting actionProprietary Material Mix ensures durable long life wheels2 full sheets of fiberglass for durability and safetyCutting Diameter: 4.5 InchesMeasurement System: MetricGrit Rating: 60