Hex key Proline 48442P — 2.5 mm metric, single piece

Proline 48442P is a single-piece metric hex key with a 2.5 mm tip, intended for driving hex (Allen) fasteners. The tool is manufactured from quenched and tempered steel and finished with polished chromium for improved surface hardness and corrosion resistance. Its compact, single-size format provides a lightweight, portable solution for tasks requiring a precise 2.5 mm hex drive.

Advantages

The hex key's quenched and tempered steel construction delivers strength and wear resistance appropriate for repeated use in assembly and maintenance. A polished chromium finish improves durability and helps protect the tool from rust in typical workshop and household conditions. The single-piece design minimizes play and maximizes torque transfer to the fastener, while the 2.5 mm size offers a precise fit for compatible hex sockets.

Suitable for

• Assembly and disassembly of furniture with 2.5 mm hex fasteners
• Maintenance and repair of household appliances and electronics requiring a 2.5 mm hex
• Light mechanical and equipment servicing where a compact Allen key is needed

Key specifications

• Drive type: metric hex (Allen) 2.5 mm
• Material: quenched and tempered steel
• Finish: polished chromium
• Design: single-piece L-shaped hex key
• Use: manual hand tool for tightening and loosening hex fasteners

How to use

Select the 2.5 mm Proline hex key and insert the shorter or longer end into the corresponding hex socket of the fastener until it seats fully. Apply steady hand torque in the required direction to tighten or loosen the fastener. Use the longer arm for greater reach or the shorter arm for increased torque. Inspect the tool and fastener for correct fit before applying force to avoid rounding the hex recess.

Usage recommendations

Use the hex key within its intended manual torque limits; avoid applying excessive force with extensions or impact tools. Store in a dry place to preserve the polished chromium finish and periodically clean the tip to maintain accurate fit with 2.5 mm fasteners.