(d) 19 Pieces of 4" Diamond Polishing Pad for granite marble concrete NOT M14 Thread. 5/8"-11 Female Thread arbor. And 1 Piece of 4" Velcro Backer/Pad Holder (5/8"-11 Female Thread arbor). VERY IMPORTANT REMIND: Velcro Backer's max velocity / capacity is 5000RPM.
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