Attach the SG R981 medium grit cloth file belt to get an exceptional, aggressive cut rate from the next-generation SG (seeded gel) ceramic alumina abrasive. With a waterproof Y-weight polyester cloth backing, this belt excels in grain adhesion, minimal edge fray and improved body retention for longevity with consistent results. Get cooler cuts, no burns on heat-sensitive materials and minimal loading with the lubricating grinding aid coating. Tackle your most demanding applications that call for medium grit, including your hard-to-grind alloys.