Hex Key (Allen Wrench) Dedra 5.0 mm, CRV steel, long

Long hex key (Allen wrench) Dedra 5.0 mm is manufactured from chromium-vanadium (CRV) steel and designed for work with hex socket screws and bolts. Its extended arm provides additional reach and leverage for recessed fasteners and locations that are difficult to access. The tool is intended for use in furniture assembly, bicycle maintenance, general mechanical repairs and a wide range of DIY applications.

Advantages

The CRV steel construction ensures improved strength and wear resistance compared with standard carbon steel hex keys. The long L-shaped design increases torque capability and access to deep or recessed screw heads. A precisely machined tip improves fit in hex sockets, reducing the risk of rounding fasteners. The compact, hardened tool is suitable for repeated use in workshop or home environments.

Suitable for

• Furniture assembly and mounting
• Bicycle repairs and adjustments
• Mechanical maintenance of small equipment
• DIY projects and household fixes
• Accessing recessed or hard-to-reach hex fasteners

Key specifications

• Size: 5.0 mm hex key
• Material: chromium-vanadium (CRV) steel
• Design: long L-shape for extended reach and leverage
• Tip: machined hex tip for secure engagement
• Finish: hardened surface for wear resistance

How to use

Select the 5.0 mm long hex key and insert the short or long arm into the corresponding hex socket of the screw or bolt. Use the long arm for extra reach or the short arm for higher torque, depending on the access and required turning force. Apply steady, even pressure to avoid cam-out and ensure the key remains fully seated in the fastener. After use, wipe the tool clean and store in a dry place to prevent corrosion.

Usage recommendations

For best results, use the long Dedra 5.0 mm hex key where recessed access or additional leverage is required. Avoid using excessive force that could damage the fastener; if a fastener is seized, apply appropriate penetrating lubricant and allow it to work before attempting removal. Keep the tool dry and periodically check the condition of the tip to maintain proper fit.