Dedra 1/2" Spline M5 Socket Bit, 100mm Length

Dedra 17F070Z — 1/2" hex key (Allen wrench) is a single-piece hand tool designed for driving and removing hex-headed fasteners with a 1/2" imperial drive. The tool is compact and straightforward in construction, suitable for use in mechanical, plumbing and general assembly tasks where a 1/2" hex engagement is required. Its single-piece design provides a rigid connection between the user and the fastener for reliable torque transfer in workshop and home repair environments.

Advantages

This 1/2" hex key offers a simple, durable solution for applications that require a large hex drive. The single-piece construction minimises flex and wear at the bending point, allowing effective transmission of torque. The compact form factor ensures access in tighter spaces compared with bulkier socket tools, and the plain design makes it easy to position and rotate hex-headed bolts and screws. The tool’s imperial sizing matches 1/2" fasteners commonly found in older equipment and certain plumbing and mechanical assemblies.

Suitable for

• Mechanical assembly and maintenance tasks using 1/2" hex fasteners
• Plumbing fittings and fixtures that require a 1/2" hex drive
• Workshop, garage and home repair jobs with larger hex bolts
• Situations requiring a compact hand tool for limited access points

Key specifications

• Type: Single-piece hex key (Allen wrench)
• Drive size: 1/2" (imperial)
• Quantity: 1 piece
• Design: Straight, single arm for direct torque application

How to use

Insert the hex key into the hex socket of the fastener ensuring full engagement between the tool and the fastener recess. Apply steady turning force in the required direction to tighten or loosen the fastener, taking care to keep the key aligned to avoid rounding the fastener edges. For higher torque needs, use controlled, incremental force rather than sudden impact. After use, store the hex key in a protective rack or toolbox to prevent corrosion and maintain the contact surfaces.

Usage recommendations

Use the 1/2" hex key only on correctly matched 1/2" hex fasteners to prevent damage to both tool and fastener. Avoid using cheater bars or excessive leverage; if greater torque is needed, switch to a suitable socket and torque tool designed for higher loads. Keep the tool clean and dry and inspect the hex ends routinely for wear or rounding.