These mops have metal centres with a 10mm bore, for use with a straight threaded arbor, mounted in a drill chuck or flexible shaft. Each mop is 100mm diameter. There is a soft cotton mop, for finishing work and high glossing. A sisal mop for first stage preparation on hard metals and a nylon abrasive lap for prepartion on wood or satin finishing of metal. For best results use a separate mop for each different compound, mark each mop using a felt tip pen with the type of compound used. Store mops in individual plastic bags when not in use.