"Choose your blade for cleaning, slotting and cutting of all types of metal and masonry. Wheels qty. 1, Arbor Size in. 5/8, Max. RPM 15,280, Recommended Use Metal, masonry, Wheel Diameter in. 4, Wheel Thickness in. 1/16, Wheel Type Right angle. Cut pipe, sheet metal and autobody panels, studs, angle iron and tubing Unique reinforced design for strength 1/16in. thin for quick, clean cutting 4in. blades for Black & Decker Hitachi, Jepson, Makita and Ryobi right angle grinders"