Description Thin Cutting Wheel Thin .045" wheel design for fast burr free cutting. Proprietary aluminum oxide grain combination for aggressive cutting action. Proprietary material mix ensures durable long life wheels. 2 full sheets of fiberglass for 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 safetyGrit Material: Aluminum OxideProduct Dimensions: 4.5"L x 4.5"W