The faithfull 4mm colour coded ball end hexagon allen key is a highly versatile mid range size that's ideal for general purpose applications across multiple industries. This size is widely used in furniture assembly, bicycle maintenance, automotive applications, appliance repair, and general mechanical work, making it an essential component of any comprehensive toolkit. Manufactured from high quality s2 steel, this 4mm key delivers exceptional impact resistance and durability, ensuring it can handle regular use without deterioration. The colour coded design allows for instant size identification, saving valuable time when working on projects. The ball end configuration provides the flexibility to access fasteners at offset angles, which is invaluable when working in confined spaces or when direct access to fasteners isn't possible. The long arm design offers superior leverage and reach, making it easier to work with deeply recessed fasteners or in tight spaces where access is limited. This combination of features makes it perfect for professional tradespeople and serious diy enthusiasts alike. Features and benefits bull s2 steel construction for long lasting performance bull colour coded for quick identification bull ball end enables angled access to fasteners bull long arm provides enhanced leverage and reach specifications size 4mm key type long arm