Spärr Wera 05003780001

The Wera 05003780001 socket wrench is a single-piece, 1/2" square-drive tool designed for professional and workshop use. It features a fine-tooth ratchet mechanism with 72 teeth, providing a 5° return angle for precise work, and a chrome finish that improves corrosion resistance. The handle is a multi-component Kraftform design for comfortable gripping and optimized transmission of pressure and tensile loads. The tool accepts 1/2" square sockets and 1/2" square-drive adapters and includes a ball locking device for secure socket retention.

Advantages

The fine-tooth mechanism with 72 teeth enables a small 5° swing arc for access in confined spaces. A switch lever allows quick, convenient reversal of drive direction, while the ball locking device ensures sockets remain securely attached during use. The chrome finish provides durability and corrosion protection, and the Kraftform multi-component handle improves ergonomics and force transfer.

Suitable for

• Automotive maintenance and repair
• Workshop and industrial assembly tasks
• Tight spaces where limited swing angle is required
• Use with 1/2" square sockets and 1/2" adaptors

Key specifications

• Drive size: 1/2" square
• Mechanism: Fine-tooth ratchet, 72 teeth (5° return angle)
• Socket retention: Ball locking device
• Handle: Multi-component Kraftform handle
• Finish: Chrome
• Compatible with Zyklop Hybrid extension 8797 C at handle end
• Brand: Wera
• MPN: 05003780001
• EAN: 4013288184214

How to use

Select the appropriate 1/2" socket or adapter and push it onto the square drive until the ball locking device engages. Use the switch lever to set the desired direction of rotation. Apply steady pressure to the Kraftform handle and operate the ratchet in short arcs when working in confined spaces, taking advantage of the 5° return angle for incremental tightening or loosening.

Recommendations

For long tool life, clean and lightly lubricate the ratchet mechanism periodically and store the wrench in a dry place. Use the tool within its intended torque range and pair it with properly sized sockets and adapters to avoid damage.