Olympia Tools 10-728 Slip Joint Pliers Set, 2-Piece Hardened And Tempered Drop Forged Alloy Steel; Polished Finish; Ergonomic Comfort Grips; Meets Ansi And Federal Specifications Corrosion Resistant and Double Injected Handle Never Hammer On Pliers Or Use Pliers As A Hammer. Never Use Leverage Extension On The Handle.