Hookit II Disc Pads

3M(TM) Hookit(TM) II Disc Pad 05275, 5 in x 3/4 in 5/16-24 External, 10 per case For use with 5 inch diameter Hookit(TM) II discs. Made with a resilient backing plate assembly and a medium density foam for durability. Fits random orbital sanders with 5/16-24 internal threads.