Hex Key Proline 48481 — 8 mm metric hex key, single piece

Proline 48481 is a single-piece 8 mm metric hex key designed for driving internal hex socket screws and bolts. Manufactured from quenched and tempered steel with a polished chromium finish, this tool offers a compact, rigid shape that facilitates access in confined spaces and provides a secure fit in hex fasteners. The single-piece construction reduces play and increases torque transfer compared with multi-piece keys.

Advantages

The hex key's heat-treated core increases durability and resistance to bending under normal use, while the polished chromium finish helps protect against corrosion and simplifies cleaning. Its precise 8 mm profile ensures consistent engagement with hex sockets to minimize rounding of fastener corners. The compact form factor is convenient for storage in tool rolls, kits, or pockets and supports straightforward one-handed operation in many repair and assembly tasks.

Suitable for

• Assembly and disassembly of furniture and fixtures with 8 mm internal hex fasteners
• Maintenance and repair of bicycles, machinery, and equipment using metric hex bolts
• Workshop and home DIY projects requiring reliable torque on 8 mm hex sockets

Key specifications

• Hex size: 8 mm
• Material treatment: quenched and tempered steel for improved strength
• Surface finish: polished chromium for corrosion resistance
• Construction: single-piece design for reduced play and better torque transfer
• Form factor: compact straight hex key suitable for confined spaces

How to use

Select the 8 mm hex key and insert the short or long end into the internal hex socket of the fastener, ensuring full engagement with the screw or bolt. Apply steady, controlled torque in the appropriate direction to tighten or loosen the fastener. For higher torque requirements, use the longer arm as a lever; for work in tight spaces, use the shorter arm. After use, wipe the tool clean and store it in a dry place to maintain the polished finish.

Usage recommendations

Use the hex key only with fasteners that match the 8 mm hex profile to avoid rounding. Avoid excessive force beyond normal hand torque to prevent tool deformation. Periodically inspect for wear or damage and replace if the hex profile becomes rounded or the tool shows cracks.