3M 04145 7-7/8" x 29-1/2" 50 Grit Regalite Purple Cloth Belt

3M Regalite coated sanding belt uses aluminum oxide as the abrasive material. 3M incorporates this aluminum oxide material into the sanding belt forming a grit of 50. This particular 3M sanding belt is 7 7/8 in wide by 29 1/2 in long. This abrasive is on a cloth backing, Y weight.