This is 500 Aluminum Oxide grit. This grit works great for the fine grind (pre-polish) in a rotary or vibrating tumblers.
Find 1 x 50 Yd 500 Grit Aluminum Oxide Shop Roll at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years
1 x 50 Yd 500 Grit Aluminum Oxide Shop Roll
3M 3 Diam, 500 Grit, Aluminum Oxide Hook & Loop Disc Super Fine Grade, Coated, Series 360L 7000118492 - 48267595 - Penn Tool Co., Inc
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