Hex key Proline 48452 — single 12 mm metric Allen wrench

Proline 48452 — single 12 mm metric Allen wrench is a one-piece hex key made for driving and removing 12 mm hex-head fasteners. Quenched and tempered with a polished chromium finish, this tool provides a compact, rigid profile suitable for workshop, automotive and furniture assembly tasks where a precise fit and consistent torque transfer are required.

Advantages

The hardened and tempered steel construction ensures improved strength and resistance to bending under torque. The polished chromium finish protects the surface from corrosion and reduces wear from repeated use. Its single-piece design minimizes play and provides a stable contact surface with hex fasteners, which helps reduce rounding and fastener damage.

Suitable for

• Assembly and disassembly of machinery and equipment
• Automotive maintenance and repair tasks
• Furniture installation and fittings
• Workshop and general maintenance jobs requiring a 12 mm hex key

Key specifications

• Tool type: single-piece metric hex key (Allen wrench)
• Size: 12 mm
• Material treatment: quenched and tempered steel
• Surface finish: polished chromium
• Design: straight single-piece hex profile for direct torque transfer

How to use

Insert the 12 mm hex end fully into the corresponding hex-head fastener to ensure maximum contact across the flats. Apply steady, even torque in the required direction to tighten or loosen the fastener. For high-torque applications, use controlled force and verify tool alignment to avoid rounding the fastener head. After use, wipe the tool clean and store it in a dry place to maintain the polished chromium surface.

Usage recommendations

Use the tool only with matching 12 mm hex fasteners and avoid applying excessive impact or prying forces. Inspect the hex key regularly for signs of wear or deformation; replace if edges become rounded. For improved grip and leverage in confined spaces, combine the hex key with appropriate holders or handles designed for hex wrenches.