12x 4.5inch 115mm Angle Grinder Cutting Discs Thin Cut Off Wheel Steel StainlessDescription: Strong wear resistance and fast grinding force. It can grind high quality metals. Be used for grinding welding seam, surface finishing, deburring, inverted circle and mirror, Surface polishing. Excellent for use carbon steel, cast iron, titanium, aluminum, brass, bronze, copper, or hard woods as well as heat sensitive materials such as stainless steel, nickel alloy or cobalt alloys. Specifications: Material: Phenolic resin brown alumina