3M Catalog# 51119204063;6399042, 3M� Trizact� Cloth Belt 237AA, A160 X-weight, 4 in x 132 in, Film-lok, Full-flex 3M� Trizact� Cloth Belt 237AA uses proprietary microreplication technology by 3M where micron-graded aluminum oxide particles are formed into tiny pyramids of abrasive mineral and then coated on an X weight cloth backing. As these pyramids wear, fresh, sharp mineral is continually exposed to produce a consistent cut and a predictable, fine finish. UPC: 00051119204063
