3M Trizact Cloth Belt, 237AA, A30, 1 in x 12.56 in (25.4 mm x 319.1 mm) The 3M Trizact Cloth Belt 237AA uses proprietary microreplication technology where micron-graded aluminum oxide particles are formed into tiny pyramids of abrasive mineral and then coated on an X-weight cloth backingAs these pyramids wear, fresh, sharp mineral is continually exposed to produce a consistent cut and a predictable, fine finish. Product Information Brand 3M Part # 7000139424 Line Trizact Backing Cloth Backing Material X Heavy cotton Color Grey Dimensions 1x12-9/16 Grit 30 Length 12-9/16 Inch Width 1 Inch Material 237AA Mineral Aluminum Oxide Origin Country USA Product Type File Belts Trizact 30 Product InformationFlexible backing for consistent finish over contoursFor intermediate finishing and fine polishing prior to plating or buffingProduces a fine finishSelf-sharpening pyramids start sharp, stay sharp, and run coolSuggested ApplicationIdeal for stainlesssteel finishesUse dry