(3B01) DISC WITH PRECISE HOLE DESIGN FOR IMPROVED LIFE AND DUST EXTRACTION. USE FOR FINE FEATHEREDGING AND LAST FINAL SANDING STEP BEFORE PRIMING. 3M'S FASTEST CUTTING, LONGEST LASTING. ABRASIVE FOR SAVING LABOUR COSTS AND IMPROVING QUALITY. SUGGESTED BACKUP PAD PN20427 AND SOFT INTERFACE PAD PN05771.