Tool designed to quickly change or remove the backing pad or discs on angle grinders Made of high carbon, polished steel for durability with an electrophoretic coating for corrosion resistance Adjustable pin-to-pin distance ranges from 15mm and to 80mm and makes it possible to use with any type of grinder Useful for removing parts from appliances and other equipment; Can be used on round nuts with drilled holes on face Spanner has versatile 4mm pins at tip that remove pads and discs of virtually any size