Proto Set Pliers Retaining Ring (577-361) 1 SetCovers External ring range of 1 1 2" to 3 3 4" and Internal range of 2 7 16" to 4" Spring loaded ratchet mechanism minimizes operator fatigue by allowing to be compressed or expanded through gradual ? moves? and locks at desired size Heavy and large rings are easily controlled Jaw Shape = Straight Handle Includes = External Plier, Internal Plier, (2) . 108 in. Tips, 0 Angle, (2) . 108 in. Tips, 15 Angle, (2) . 108 in. Tips, 45 Angle, (2) . 108 in.