• New, improved blend of ceramic alumina and new patented zirconia alumina abrasive for fast, aggressive cutting on stainless and low carbon steels. • Advanced resin bond technology with enhanced grain adhesion for extended life. • Advanced self-lubricating grain treatment for reduced heat and loading on hard-to-grind materials. • Extra heavy duty backing and improved resin bond system for superb grain retention extending the product life. • Extra coarse/24 grit for heavy stock removal. • AVOS is a patented hole design allowing a more aggressive interrupted cut and reduces heat by up to 30 percent resulting in longer discs life. • The most heavy duty of coated abrasive discs with resin over resin construction on heavy duty vulcanized fiber backing. • Designed for applications ranging from heavy stock removal to surface blending. • Used with back up pads on portable angle grinders.