Wiha MagicRing Hex L-keys feature screw holding Ball Ends via a non-wearing steel spring compression ring that grips the inner screw head with full radius contact to allow you a free hand for positioning or hard to reach fasteners. Wiha MagicRing Hex L-keys are engineered using Wiha special chrome-vanadium-molybdenum tool steel hardened and tempered for wear resistance, precision CNC machined and chamfered ends, no cut off burrs or impact distortions and are Vapor Chromed Finished for protection against corrosion and rust. for fast simple removal of individual L-Keys from the Wiha Exclusive ErgoStar Holder, rotate the largest L-Key and all keys will turn 90° to give you a clear and unimpeded access to the your desired size.