A blend of ceramic and aluminium oxide mineral self-sharpens and offers improved durability and cut-rate over aluminium oxide 3M Roloc attachment system enables efficient and secure attachment and removal of the disc YF-weight, polyester backing is extremely tough to support medium-pressure applications while maintaining consistent performance in both wet and dry applications Grinding aid reduces grinding temperatures for processes involving heat-sensitive alloys such as stainless steel, nickel alloys, and titanium Heat-resistant resin coating bonds abrasive to backing for durability under pressure, heat, and water