Hex key Proline 48482, metric 9 mm, single L-shaped Allen key

Proline 48482 is a single L-shaped metric hex key with a 9 mm tip designed for tightening and loosening hex socket screws and bolts. The tool is quench‑and‑tempered for strength and finished with polished chromium to resist corrosion and provide a smooth surface. Its one-piece L shape gives reach into confined spaces while allowing leverage for medium-duty fastening tasks in mechanical assembly, maintenance and household repair.

Advantages

The hardened and tempered steel construction improves durability and reduces the risk of bending under torque. The polished chromium finish offers enhanced corrosion resistance and easier cleaning after use. The L-shaped single-piece design provides a short arm for high torque and a long arm for access in narrow or recessed fastener locations. The 9 mm metric tip is machined to fit hex socket profiles precisely, reducing cam‑out and wear on both tool and fastener.

Suitable for

• Mechanical assembly and disassembly of machines and equipment
• Routine maintenance and service tasks requiring metric hex keys
• Household repairs involving furniture, appliances or fixtures with hex socket fasteners
• Automotive and bicycle tasks that use medium‑duty hex bolts

Key specifications

• Tool type: L-shaped single hex key (Allen key)
• Size: 9 mm (metric)
• Material treatment: quenched and tempered for increased hardness
• Finish: polished chromium for corrosion resistance
• Design: one-piece construction for rigidity and torque transfer

How to use

Insert the appropriate end of the L-shaped hex key into the hex socket of the fastener, using the short arm for higher torque and the long arm for reach or clearance. Turn clockwise to tighten and counterclockwise to loosen, applying steady pressure to avoid slipping. For recessed or hard-to-reach fasteners, use the long arm as the handle and the short arm as the working end. After use, wipe the tool clean and store it in a dry location to preserve the chromium finish and prevent corrosion.

Usage recommendations

Use the 9 mm Proline hex key for medium-duty tightening and loosening. Avoid using excessive force that exceeds typical hand-tool torque to prevent fastener or tool damage. If higher torque is required, select a larger dedicated wrench or use proper drivers designed for impact or higher torque applications.