Rockworth Metal Cutting Discs Are Manufactured Using Aluminium Oxide Grain With A Resin Bond Which Offers Long Life & Excellent Stock Removal *Slim Line Cut Off Wheels (1mm 2mm) Give Maximum Utility & Cutting Capacity *Suitable For All Metal Types Including Stainless Steel And Cast Iron *They Must Never Be Used For Grinding And Must Always Be Presented To The Workpiece At An Angle Of 90 Degrees