This innovative socket features a spring-loaded insert at each end, allowing it to accommodate four different sizes: 17, 19, 21, and 22mm. With this all-in-one solution, you can save on the number of tools you need to carry around with you and make the most of limited storage space. It’s crafted from tough chrome vanadium with a satin finish and includes a 77mm extension bar with a half-inch drive, for an overall length of up to 119mm. It’s the ideal socket set to carry in your glovebox, car tool kit, or even have hidden under the boot floor in a spare wheel.