Faithfull · Hex & Torx Keys

Faithfull Hexagon Allen Key

The Faithfull 4mm Hexagon Allen Key is a popular medium size suitable for countless applications across various trades and industries. This is the smallest size to feature chamfered edges, which protect both the key blade and socket fittings from damage during use. The 4mm size is commonly encountered in machinery, automotive work, furniture, and general mechanical assemblies. Constructed from fully hardened chrome vanadium steel, this 4mm key delivers professional-grade strength and durability. The chamfered edges extend tool life whilst protecting valuable components, and clear size markings enable quick identification in workshop environments. Features and Benefits: • 4mm size perfect for common hexagon socket applications • Fully hardened chrome vanadium steel for superior strength • Chamfered edges protect both tool blade and fittings • Size marked on key for easy identification • Ideal for automotive, machinery, and general mechanical work • Professional quality for demanding trade applications Specifications: Key Type: Standard Size (mm): 4

90-day range £∞–-£∞ · average £NaN