Bolt fastening grinding wheel●Bolt fastening grinding wheel mainly used for grinding flat and parallel parts,Website:http://www.abrasives-machines.com, ... chainsaw blade, valve plate, alnico magnet, plumbing fixture, etc.●Grinding for bearing part, piston ring spring, mould gears, ... blade, valve plate, alnico magnet, plumbing fixture, etc.Specifications:Diameter (mm)Hole(mm)Thickness(mm)Remark20311532 ...