Detailed Product Description polishing disc,grinding head,fiber disc,nylon disc,grinding discFeatures:1 Special three ... dissipate heat,without smearing or discoloring the work piece.4 Gentle action,prevents undercutting or gouging5 Can be run ... .(hand tool,surgical instrument gear,cutlery and metal fabrication)4 Decorative finishing.(watch strap,antique,stainless steel pipe and metal fabrication