​Product name:zirconia fiber disc Basic information： size：4"-9" core:round/cross hole/splayed hole grain：zirconia backing： vulcanized fiber bond：resin Feature： 1.high chip removal ability 2.cool grinding 3.tensile strength, wear resistance particularly strong. 4.long lasting&durable Application： 1.strip&clean workpiece surface 2.paint/rust removal,weld grinding，deburring 3.For finishing & sanding of wood, metal etc. 4.especially for grinding ss.st，better gloss