4" Diamond wet DRY Polishing Pad 16 + aluminum backer granite marble mosaic tile

The aluminum backer's arbor is 5/8"-11 Female Thread. (b) 1 Piece Aluminum Backer (5/8"-11 Female Thread arbor). (a) 16 Pieces of 4" Premium Dry Pad. 1 X Grit 1500 3000. 2 X Grit 800.

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