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But dry use recommended for granite marble concrete quartz ceramic sandstone. And 1 Piece of 4″ (5/8″-11 Female Thread arbor) Rubber Backer/Pad Holder. Remind: Rubber Backer’s max velocity / capacity / velocity is 5000RPM. Please don’t use it with high speed grinder / polisher. The 62 Pieces Dry Pad are: 11 X Grit 50 100 200 400. 5 X Grit 800 1500. 4 X Grit 3000 Buff.
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