Hex key Proline 48470 — 12 mm metric L-shaped hex wrench, single piece

Proline 48470 is a single-piece 12 mm metric L-shaped hex key designed for turning hex-head fasteners. Made from quenched and tempered steel with a polished chromium finish, this compact Allen wrench offers a rigid one-piece construction suitable for assembly, maintenance and repair tasks in workshops, garages and on-site environments where a single 12 mm hex key is required.

Advantages

The single-piece L-shaped design provides reliable stiffness and consistent contact with hex fasteners. Quenched and tempered steel increases durability and resistance to deformation under torque, while the polished chromium finish helps reduce corrosion and facilitates easy cleaning. Its simple geometry offers straightforward leverage for tightening and loosening operations without additional moving parts.

Suitable for

• Turning 12 mm internal hex (Allen) fasteners during assembly
• Maintenance and repair work in automotive or mechanical applications
• Workshop and garage tasks that require a single, sturdy hex key
• On-site adjustments where compact hand tools are needed

Key specifications

• Tool type: L-shaped metric hex key (Allen wrench)
• Size: 12 mm
• Construction: single-piece
• Material treatment: quenched and tempered steel
• Finish: polished chromium

How to use

Insert the short or long arm of the L-shaped hex key into the hex recess of the fastener to achieve the desired reach and leverage. Turn the tool clockwise to tighten and counterclockwise to loosen, applying steady force to maintain full contact between the key and the fastener. Use the long arm for greater reach and the short arm for increased torque when space allows. Avoid using excessive force beyond the tool’s capacity to reduce the risk of rounding fastener heads or bending the key.

Usage recommendations

For best results, clean the fastener recess before use to ensure full engagement. Store the hex key in a dry place to preserve the polished chromium finish and periodically inspect the tip for wear; replace the tool if the tip becomes rounded or damaged.