About this item Size :4-1/2-inch x .047-inch x 7/8-inch Performance: this is for a pack of 50 pieces of our cutting wheels thin 0.045" Cutting wheel design for fast burr free cutting. Perfectly compatible with all 4-1/2 angle grinders with 7/8-inch arbor, operating up to 13,300 rpm and 80m/s Advantage: thin .045-inch wheel design for fast burr free cutting proprietary aluminum oxide grain combination for aggressive cutting action Material: proprietary aluminum oxide grain for long life and fast cutting.double fiberglass mesh reinforced for further safety and durability Safety tips: please use all necessary protective gear when you use these cutting discs.if there is any problem with the product, please contact us to help you solve the after-sales problem › See more product details