Draper Hexagon Allen Key Metric

The 4mm metric hexagon key is a workshop staple for medium-duty applications. Extensively used in bicycle components, power tools, and general machinery, this size offers excellent torque transfer whilst remaining manageable for confined spaces and regular maintenance tasks. Features and Benefits: • Chrome vanadium steel construction, hardened and tempered • Chemically blacked protective finish • Chamfered ends for reliable fastener engagement • Perfect for medium-duty workshop and maintenance tasks Contents: • 1 x Metric Hexagon Key, 4mm