3M Hookit hook-and-loop attachment provides excellent backing support and easy reuse, optimizing disc life
External threads are compatible with orbital or random orbital sanders with similar internal threads (1/4-20 for 3” random orbital sander or 5/16-24 for 5” and 6” random orbital sanders)
Medium density foam provides some conformability for surface sanding
Multi-hole pattern maximizes dust extraction with a central or self-generated vacuum system (sold separately)
Tapered edge performs well when flexibility is needed for feather-edging or blending a painted area