Merit Abrasives Aluminum Oxide B-4 Series Bore Polishers, 240 Grit, 16,000 rpm

Aluminum Oxide B-4 Series Bore Polishers, 180 Grit, 16,000 rpmFeaturesUse with BPM-4 mandrelFour abrasive packs 1 1/2 in wide, bonded to hubPolish and finish in one application

Aluminum Oxide B-4 Series Bore Polishers, 80 Grit, 16,000 rpmFeaturesUse with BPM-4 mandrelFour abrasive packs 1 1/2 in wide, bonded to hubPolish and finish in one application

Aluminum Oxide B-4 Series Bore Polishers, 120 Grit, 16,000 rpmFeaturesUse with BPM-4 mandrelFour abrasive packs 1 1/2 in wide, bonded to hubPolish and finish in one application

Aluminum Oxide B-8 Series Bore Polishers, 180 Grit, 16,000 rpmFeaturesUse with BPM-8 mandrelEight abrasive packs 1 1/2 in. wide, bonded to hubPolish and finish in one application

Aluminum Oxide B-8 Series Bore Polishers, 80 Grit, 16,000 rpmFeaturesUse with BPM-8 mandrelEight abrasive packs 1 1/2 in. wide, bonded to hubPolish and finish in one application