With the Expert E117816 ball end hex key set, you can tackle fastening tasks on machinery, equipment, and vehicles with imperial standards with confidence. Thanks to the ball-end tip, you can drive hexagon socket screws smoothly at angles of up to 15 degrees, making tight and hard-to-reach spots easy to manage. The long-arm profile gives you extended reach into deep recesses and provides extra leverage for loosening or tightening stubborn fasteners. Constructed from zinc-plated chrome vanadium steel, these keys offer dependable resistance against wear and corrosion. With sizes ranging from 3/32" to 3/8" in a compact folding holder, you always have the right tool organized and ready.