8 Abrasive packs 1.5 In. Wide bonded to hub. Extension mandrels are available for deep holes. Polish and finish in one application. Use with bpm-8 mandrel.Specifications length 10.400 In. Width 10.20 In. Grit 60 Fits i.D. 3 1 8 In min 4 in max speed 10000 Rpm max applications Removing flash parting lines and heavy scratch patterns height 0.590 In. Roughness grade Coarse quantity 10 Per package item weight 0.25 Lbs. Sku: orsno109838