Designed for grinding metal. We developed the PRO Metal for metalworkers who need a reliable and durable grinding wheel. The long-lasting PRO Metal bonded grinding wheel is equipped with high-quality aluminum oxide abrasive grains to efficiently grind metal and steel. The grains are combined with functional fillers and embedded in a phenolic resin matrix to ensure stability, heat resistance, and reliable grinding performance. A precision-engineered fiberglass mesh reinforces the wheel, providing additional safety. It is free of iron, so you don't have to worry about rust on your workpiece when cutting stainless steel exclusively. With a 22.23 mm bore diameter for standard angle grinders with a clamping nut.