L-shaped hex key Wera 950 BM, Metric, 1 pc — long arm 10 cm, short arm 3.6 cm

Wera 950 BM is a single L-shaped metric hex key engineered for driving hexagonal socket screws in assembly, maintenance and repair tasks. The tool features a long arm of 10 cm and a short arm of 3.6 cm to combine reach and leverage for working in confined spaces. Manufactured with the Hex-Plus geometry and a BlackLaser surface treatment, this hex key is designed to reduce screw head notching, provide improved contact with fasteners and resist surface wear and corrosion during regular use.

Advantages

The Hex-Plus profile increases the contact surface inside the screw head, minimising rounding and reducing the risk of damaging the recess. The BlackLaser surface treatment adds durable corrosion resistance and long service life while wear-resistant size markings enable quick identification. The L-shaped form offers both torque from the long arm and compact access from the short arm, making the single-piece tool versatile for many tasks.

Suitable for

• Assembly and disassembly of machinery and equipment with metric hex fasteners
• Bicycle maintenance and component adjustments
• Furniture assembly and home repair jobs in confined areas
• Maintenance tasks in workshops and production lines requiring precise hex engagement

Key specifications

• Tool type: L-shaped metric hex key (single piece)
• Long arm length: 10 cm
• Short arm length: 3.6 cm
• Geometry: Hex-Plus profile for increased contact surface
• Surface finish: BlackLaser coating for enhanced corrosion resistance
• Size marking: Wear-resistant markings for rapid identification

How to use

Select the hex key size that matches the internal hex of the fastener and insert the short or long arm into the screw recess depending on access and required torque. Use the long arm for increased torque and reach, and use the short arm for applications requiring a lower profile or where space is limited. Apply steady, controlled force to avoid cam-out and ensure the Hex-Plus profile fully engages the fastener for minimal wear.

Usage recommendations

Store the hex key in a dry place after use to preserve the BlackLaser finish. Inspect fasteners and tool edges regularly; replace the key if excessive wear is observed to avoid damaging screw heads. For high-torque applications, use the long arm for leverage and avoid sudden impacts that could stress the tool.