Representing the latest in water pump plier technology. Automatically adjusts to required size by using ONE HAND. Patented system allows for easier, faster, and safer work in confined areas without losing features of traditional water pump pliers. Designed and manufactured to outperform DIN specifications and ISO testing standards. Length 300mm (12in.). Jaw width 10mm. Jaw Opening 55mm. Jaw Depth 38mm. Material 50CrV. Tooth Hardness 51RC. Maximum pipe capacity 50mm. Maximum nut capacity 46mm. Weight 584g. 14 Adjustment positions.Read product review from Amazon Customer Reviews.