Draper Hexagon Allen Key Metric

The 5.5mm metric hexagon key serves specialist applications where non-standard fastener sizes are specified. Particularly useful for imported machinery and bespoke equipment, this size ensures you're equipped for less common fastener specifications that standard increment sets may miss. Features and Benefits: • Chrome vanadium steel construction, hardened and tempered • Chemically blacked protective finish • Chamfered ends for precise engagement • Essential for specialist and imported equipment Contents: • 1 x Metric Hexagon Key, 5.5mm