Different bonding materials are used depending on the intended use of the grinding wheel. The cutting action is performed by an abrasive disc, similar to a thin grinding wheel. This can dislodge pieces of the grinding wheel, causing injury. The system consists of the anode workpiece and the cathode grinding wheel. At first the blade is sharpened on a grinding wheel. Grinding metal on a power-driven grinding wheel quickly heats up the workpiece. The first attempt was simply a small lathe with a grinding wheel mounted to it. The ceramic blade is sharpened by grinding the edges with a diamond-dust-coated grinding wheel. Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. To use the grinding wheel it must first be clamped to the grinding machine. These two materials don't tend to clog the grinding wheel while being processed. For its eighteenth album, "The Grinding Wheel", Overkill does the unthinkable&colon; it outdoes itself. The test sample is then touched lightly to the grinding wheel to produce the sparks. "The Grinding Wheel" has received generally positive reviews from critics. A very shallow cup-style grinding wheel.