Mac Tools Snap Ring Plier #FS5066 Retired Vintage. Unique Pin/Slot design gives better control of External Snap Rings for easier, faster, more productive application. Reduces loss of Snap Rings. Designed for long service life. Plastic covered handles. Range of ring size stamped on tool. Range of Ring Size 50-66. New old stock. Never used. See pictures to determine condition for yourself. Stored in a pet and smoke free environment.