Hex key Proline 8 mm model 48448 — single metric Allen key

Proline hex key model 48448 is a single 8 mm metric Allen key designed to drive internal hex fasteners. Quenched and tempered with a polished chromium finish, this compact hand tool provides a precise fit in 8 mm hex sockets and is intended for assembly, maintenance and repair tasks where a reliable, single-size driver is required. Its simple L-shaped profile makes it suitable for use in confined spaces and for applying controlled torque to hex screws.

Advantages

The hardened and tempered steel construction increases durability and resistance to wear during repeated use. The polished chromium finish helps protect against corrosion and facilitates cleaning after work. As a single 8 mm metric key, it offers straightforward identification and reduces the need to search through multi-piece sets when only one size is required. Its compact form factor makes it convenient to carry in a pocket or small toolbox.

Suitable for

• Driving or loosening 8 mm internal hex screws on machinery and equipment
• Automotive repairs where an 8 mm Allen key is required
• Household assembly tasks such as furniture and fixtures
• Workshop maintenance and light industrial fastening work

Key specifications

• Size: 8 mm metric hex key
• Material treatment: quenched and tempered steel
• Finish: polished chromium
• Form factor: L‑shaped single key
• Application: internal hex fasteners

How to use

Insert the short or long arm of the 8 mm hex key into the internal hex socket of the fastener until it seats fully. Use the long arm for increased reach and the short arm for higher torque, applying steady force in the required direction to tighten or loosen the screw. Ensure the key is properly engaged to avoid rounding the fastener head, and withdraw the tool after completing the operation. Store the key in a dry place after use to maintain the polished chromium finish.

Usage recommendations

Use the tool within its intended size range and avoid applying excessive impact or bending force. For stuck or rusted fasteners, apply penetrating lubricant and allow time to penetrate before attempting to turn. Regularly inspect the hex key for wear or deformation and replace it if the edges become rounded to prevent damage to fasteners.