Hex key Proline 48464 — single 5 mm metric Allen key

Proline 48464 — single 5 mm metric Allen key is a compact, hardened hex key designed for tightening and loosening hex-socket fasteners. The tool is manufactured from quenched and tempered steel and finished with polished chromium, providing the stiffness and surface protection required for routine assembly, maintenance and repair tasks on machinery, furniture and bicycles. This single-piece tool offers precise engagement with 5 mm hex sockets and a size suited to small and medium fasteners.

Advantages

The hardened and tempered steel core increases resistance to bending and wear while the polished chromium finish improves corrosion resistance and facilitates cleaning. As a single-piece tool, the 5 mm hex key provides reliable torque transfer and a slim profile for access in confined spaces. Its metric sizing ensures compatibility with standard 5 mm hex-socket fasteners commonly found in household, workshop and mechanical equipment.

Suitable for

• Assembly and disassembly of furniture with 5 mm hex fasteners
• Routine maintenance of bicycles and small machinery
• General workshop and household repair tasks requiring a 5 mm Allen key

Key specifications

• Hex size: 5 mm (metric)
• Material treatment: quenched and tempered steel
• Surface finish: polished chromium
• Tool type: single-piece L-shaped hex (Allen) key
• Intended use: manual tightening and loosening of hex-socket fasteners

How to use

Insert the 5 mm hex end fully into the corresponding hex-socket fastener to achieve secure engagement. Apply steady manual torque using the long arm for leverage or the short arm for higher torque in tight spaces, avoiding sudden excessive force that could strip the fastener or deform the tool. After use, wipe the polished surface clean and store the hex key in a dry place to maintain the chromium finish and prevent corrosion.

Usage recommendations

Use the Proline 5 mm Allen key for appropriate fastener sizes only; do not use as a pry bar or striking tool. For prolonged or high-torque industrial applications, consider using a dedicated torque tool to ensure consistent fastening values and to protect both fasteners and the hex key.