... or 5/8"-11 with Snail Lock 3.using on hand grinder Snail Lock Round Stone Abrasive Brush1.DuPont filament.2. ... M14 or 5/8"-11 with Snail Lock3.using on hand grinder. NameSnail Lock Round Stone Abrasive BrushPlace of OriginFujian,ChinaGrit Load20 ... 80#,120#,180#,240#,320#,500#. MachineHand Grinding Machine,wet grinder.QualityexcellentFunctionfor processing the marble ,granite to get antiqueFuJian FuLi ...