The Wiha 66991 13-Piece MagicRing Ball End Hex L-Key Set – Inch offers precision and durability with CNC-machined, premium quality tool steel and chrome-plated satin finish for corrosion protection. This ergonomically efficient set provides 20% longer keys to access hard-to-reach fasteners and a Ball End for interlock of up to 25. The ErgoStar turn-select holder allows for organized storage and secure fastener retention. Size markings on the holder and engraved blade make identification easy.