3M Silver Depressed Centre Grinding disc is 3M's type 27 disc, built to deliver an unbeatable combination of performance and durability. The disc delivers a fast and consistent cut during grinding and heavy stock removal on stainless steel, mild steel, aerospace alloys and much more. The disc features 3M's Precision Shaped Grain, which continually fractures into ultra-sharp points and edges that slice cleanly through metal, rather than gouging or ploughing - as traditional abrasives do. This means you get significantly increased durability over conventional ceramic grain abrasives while maintaining a high cut-rate over the entire life of the disc. Features and Benefits 3M Precision Shaped Grain cuts cleanly and fast, drastically increasing productivity Long-lasting disc provides great performance value Perfect for use on a variety of substrates such as carbon steel and stainless steel Typical Applications Suitable for heavy grinding, beveling and weld removal Used for aggressiv