"Choose your blade for cleaning, slotting and cutting of all types of metal and masonry. Max. RPM 13,580, Wheel Thickness in. 1/16, Wheels qty. 1, Recommended Use Metal, masonry, Arbor Size in. 7/8, Wheel Diameter in. 4 1/2. Cut pipe, sheet metal and autobody panels, studs, angle iron and tubing Unique reinforced design for strength Extra-thin 1/16in. for quick, clean cutting 4 1/2in. blades for Black & Decker, Bosch, Craftsman, DeWalt, Hitachi, Jepson, Makita, Metabo, Milwaukee, Porter Cable and Skil"