Stanley Proto J385L Convertible Retaining Ring Pliers - 7-1/4-inch Design permits quick change-over to work internal or external rings Pliers have no screws to tighten Pliers have a return spring designed to reduce fatigue and facilitate operation Pliers have air cushioned grips which spreads loads across the hand increasing comfort Ring range: External (Shaft) 1/4-inch- 2-inch; Internal (Bore) 3/8-inch- 2-inch