Designed for grinding stainless steel. The PRO Stainless Steel was developed for metalworkers who need a reliable and durable grinding disc for grinding stainless steel. Premium aluminium oxide abrasive grains ensure that this PRO Stainless Steel bonded grinding wheel grinds stainless steel efficiently. The grains have been supplemented with fillers and additives to reduce heat build-up. A precision-engineered glass fibre mesh reinforces the disc and makes it more stable and safer to use. It is iron-free, so you don't have to worry about rust on your workpiece if you only cut stainless steel. With 22.23 mm bore diameter for standard angle grinders with clamping nut.