RS PRO Stainless Steel Circular Abrasive Brush, 50 mm Diameter If you have an object that needs to be maintained, finished or prepared for further work, this RS PRO circular brush is an effective solution. You can mount its 6 mm spindle onto a sander or any similar power tool and its abrasive bristles will remove imperfections or unwanted substances from your surfaces. Stainless steel bristles ensure that the brush is sturdy enough to offer reliable performance. They're also highly durable and resistant to rust, so you'll rarely have to replace them. The bristles are also crimped to each other in a way that makes them highly flexible, so they work well with irregular planes and tight corners. The brush head's circular shape gives you a larger contact area, so you can cover a surface more quickly and evenly. Use this product to remove rust or paint from doors, walls and machinery or to polish smaller metallic components. Features and Benefits - Stainless steel bristle material - Circular brush type - Diameter of 50 mm - Fixing size of 6 mm - Maximum safe speed of 15,000 rpm (revolutions per minute) - Wire gauge of 0.30