... Description Abrasive Wheels for Construction Machinery, Boats, Stone, Wood and AutomobilesAbrasive Disc, Silicon Carbide, Aluminum OxideModel Number: 4" ... widely used in auto, aviation, machinery, instrument, construction and more.About us: we are the professional supplier of hand tools ... have our produce department .sales department ,QC department and perfect after service.if you need tools ,pls find ...