6 Coarse Grit & 1 Mandrel 1/8" Shank for 1" Abrasive Rolls Jewelers Polishing Abrasive Cartridge Rolls 1x1/2" 1" x 1/2" Diameter Aluminum Oxide Grit 1/8" Center Hole Used for polishing and deburring 6 Jewelers Polishing Abrasive Cartridge Rolls 1x1/2" Coarse Grit Mandrel 1/8" Shank for 1" Abrasive Rolls