For tightening taps without isolating the water supply. Adjustable jaws allow you to work on the pipe union nut and tap back nut with the same wrench. Set contains one wrench for basins and one for baths.Features and BenefitsSlim design ensures maximum accessibilityAdjustable handles give maximum leverage as well as enabling use of jaws at either end of wrenchThe sliding handle channel means the handle can be easily repositionedFlat head screwdriver fitting on reverse of jaws allow for quick and easy adjustment of the jawsDifferent jaws at either end of the wrench cover a wide range of nut sizesIn the closed position the bottom half of the jaw acts as a stop when tightening / removing union nutApplication:1. Sliding jaw locks in position to allow tightening/removal union unit2. Sliding jaw dropped to allow tightening of tap back nut with out having to turn off water supply or drain system.Designed for 1/2" and 3/4" BSP threads - Suitability with every manufacturer's nut siz