Adjustable Wrench for Reinforced Pipes 1" Designed for various hydraulic and locksmith tasks: loosening and tightening pipes, fittings, screws, etc. Robustly constructed from chrome-vanadium steel with serrated jaws, allowing for the application of considerable force when loosening or tightening various types of elements, including round ones. Hardened teeth for wear resistance. Technical Specifications: Size: 1" Intended Use: hydraulic and locksmith tasks Material: chrome-vanadium steel CrV Worm gear mechanism for adjusting jaw width Long handle for strong grip Steel hardened jaws Handle insulated with rubber overlays