You are buying 9 ea. 120+ Aluminum Oxide XF 3M384F RB Cloth Belt 4IN x 120 IN 60-0003-5417-9. Abrasive Material. 3M Abrasives engineers know abrasive belt construction. 3M engineers developed 3M™ Cloth Belt 384F with increased cut and durability for top performance on general purpose sanding and grinding applications.
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