This is a genuine manufacturer approved replacement switch used on a variety of power equipment. It is the part of the tool handling on/off operations. Since switches have moving mechanical parts, they will eventually wear out and will require a replacement. Switch has a plastic body and it is sold individually.To replace this switch you would need a screwdriver.• Remove screws used to hold switch cover• Disconnect wires from the old switch and remove it from the housing• Place the new switch in the housing and connect wires to it• Reassemble the housing For Use With: Jet 4224 24 in. 3HP ...