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Hex key Proline 4 mm – Proline 48463 single hex key, metric 4 mm
Summary description:
Proline 48463 is a single metric hex key with a 4 mm working size. It serves as a compact hand tool for tightening and loosening hex-head fasteners, suitable for assembly, maintenance, and repair tasks in furniture, bicycles, electronics and general DIY. The single-piece hex key provides precise fit and torque transfer for standard 4 mm hex bolts.