Norton 66254492526 3/4x18” BlueFire R887D Coated Zirconia Alumina Cloth File Belts, 40 GritStrong, self sharpening zirconia alumina abrasive for fast, aggressive cut 30% longer life than competitive zirconia belts Strong Y weight polyester waterproof backing Durable resin bond for excellent grain retention and product life Excels on light to moderate pressure, dry or wet, applications BlueFire R887D coarse grit cloth file belts are engineered with a strong, self sharpening zirconia alumina abrasive for fast and aggressive cutting. Featuring