The Monument 2166M TRV Tail Driver Fitting Socket is a specialist plumbing tool designed for fast removal and installation of radiator valve tails. This versatile socket fits most makes and sizes of TRV tails, making it an essential addition to any heating engineer's toolkit for radiator installation and maintenance work. The socket features a 10mm hex drive, allowing it to be used with either a cordless drill chuck for powered operation or a manual ratchet for precise control. This dual compatibility gives plumbers flexibility to choose the most appropriate tool for each application, whether working in tight spaces or requiring additional torque. Ideal for heating engineers and plumbers working on central heating systems, this tail driver socket speeds up radiator fitting tasks and eliminates the need for improvised tools that can damage valve tails. Features and Benefits:Compatible with most makes and sizes of radiator valve tails10mm hex drive works with cordless drills or rat