Our serrated lock washers for cut-off grinders and angle grinders with 22mm mount are suitable for wet and dry grinding. Universally applicable for sanding paints and varnishes, old paintwork, fillers, primers, fillers, non-ferrous metals, wood, hardwood, copper, brass, bronze and plastic. Can be used wet and dry, you can sand surfaces and edges flexibly with your sanding machine. Whether for woodworking, painting, drywall construction or for use in your own four walls. Also ideally suited for use in professional vehicle repairs.