... disc. 4,6,8,10 inch available. Buffing wheel,granite polishing wheel,grinding wheel..1. DescriptionGritSizeCharacteristicsDiamond Grinding Disc50#,200#,400#4,6,8,10 ... clarity/ clearness.3.Application: Used for maintaining,repairing and renewing granite, marble,concrete,etc. After rough grinding and fine polishing with ...