Abrasive Wheel of Sanding Disc: water resistance,oil resistance and long life, soft polishing without burning workpiece. ES13005 Abrasive Wheel of Sanding Disc Abrasive: silicon carbideCharacter: water and oil resistance, long life, avoide burning workpiece and good flexibilitySize: 30x13x6mm,40x13x6mm,50x13x6mm,60x13x6mm,75x13x6mm,100x13x6mm,125x13x6mm. Abrasive Wheel of Sanding Disc