The wiha 13 piece ergostar magicring ball end hexagon allen key set delivers professional grade performance for imperial hex fastening applications. This comprehensive l key set features through hardened chrome vanadium steel construction with a chrome plated finish, providing exceptional durability and corrosion resistance for demanding workshop and site environments. The ball end design allows you to work at angles up to 25 degrees, enabling access to recessed or awkwardly positioned fasteners where conventional hex keys cannot reach. Sizes 1 8 inch and above incorporate wiha's innovative magicring holding feature, which uses a spring steel ring to securely grip standard hex screws in any position without magnets, reducing the risk of dropped fasteners during overhead or vertical applications. The space saving ergostar holder keeps all 13 keys organised and readily accessible, with individual key removal that doesn't disturb the others. This imperial set conforms to asme b18.3 standards, making it ideal for engineers, mechanics and maintenance technicians working with american specification machinery and equipment. Features and benefits bull ball end enables working at angles up to 25 degrees for improved access bull magicring spring steel retention system holds screws firmly without magnets bull through hardened chrome vanadium steel for long lasting durability bull ergostar holder allows individual key removal without disturbing others bull chrome plated finish provides corrosion resistance bull conforms to asme b18.3 standard contains the following sizes 5 x hex ball end keys 0.05, 1 16, 5 64, 3 32 7 64in. 8 x magicring hex ball end keys 1 8, 9 64, 5 32, 3 16, 7 32, 1 4, 5 16 3 8in. Specifications type imperial max. Size in 3 8 key type l shaped end type ball no. Keys 13