http://www.industrysearch.com.au/Products/Fibre-Discs-3M-Cubitron-II-83344 3M Australia & New Zealand - Industrial Business - Forget everything you know about fibre discs! Imagine a new fibre disc that incorporates abrasive technology that rewrites the rules of grinding. Generating less heat, faster processing time, fewer stress failures and less burnishing. 3M™ patented Cubitron™ II technology uses revolutionary precision shaped ceramic grain technology engineered with ultra sharp, fast-cutting points that wear evenly, run cool and optimise mineral breakdown to maximise disc life. The precision shaped self sharpening ceramic peaks act like an individual cutting tools that slice through the metal as opposed to conventional ceramic grains that plow. Applications - 982C for Mild steel Weld removal Mill scale removal Removing pits and surface imperfections Bevelling Edge chamfering