... , varnish grindingXZ331ZrO40 - 120X-Clothstainless steel and high alloy steel, for flap discXA318R/R24-600normal belt & narrow beltwaterproof, economic,normal use for ... , and fine polishing for marble and glassGXK51-BELTR/R36-400belt,flap discFor wood, metal, and plastic polishing