Aluminum Oxide B-4 Series Bore Polishers, 240 Grit, 20,000 rpm
Features: Use with BPM-4 mandrel | Extension mandrels are available for deep holes | Polish and finish in one application | 4 abrasive packs 1 1/2 in wide, bonded to hub
Standard Pack: 10 EA / PK
Country Of Origin: US
