dewalt dw4523 4 1 2 x 1 4 x 5 8 11 high performance metal grinding wheelDEWALT DW4523 4 1 2" x 1 4" x 5 8" 11 High Performance Metal Grinding Wheel Crafted from high performance aluminum oxide grain for durability and optimal material removal, DEWALT Type 27 HP Metal Grinding Wheels grind and shape a variety of metals and non ferrous materials. High grain concentration for aggressive grinding action and smooth running wheels. Specifications Disc Diameter [in] 4 1 2 Disc Thickness [in] 1 4 Number Of Pieces 25 Product