Socket extension bar Wera 8794 SA 1/4" drive, 1/4" input, 6.3 mm output

The Wera 8794 SA socket extension bar for 1/4" drive provides a compact, reliable link between 1/4" input tools and 6.3 mm output sockets. Designed to bridge small distances and reach recessed fasteners, this extension allows use of sockets with ratchets, torque tools and screwdriver handles that accept 1/4" interfaces. Its compact form factor and precise fit maintain torque transmission and alignment in confined spaces common in automotive, appliance and machinery maintenance.

Advantages

The extension bar delivers a secure mechanical connection that minimizes play between driver and socket, reducing the risk of rounded fasteners. Manufactured to precise dimensions, it preserves torque transfer and provides consistent engagement with both driver and socket. Its short length and slim profile improve access to tight recesses and retain compatibility with common 1/4" workshop tooling.

Suitable for

• Reaching recessed or hard-to-access fasteners in engines and gearboxes
• Assembly and disassembly of appliances and electronics with limited clearance
• Use with hand ratchets, torque wrenches and screwdriver handles that accept 1/4" interfaces
• General maintenance and repair tasks in professional and home workshops

Key specifications

• Drive size: 1/4" (input)
• Output connection: 6.3 mm
• Type: socket extension bar
• Function: extends reach for sockets and improves access in confined spaces
• Compatibility: fits standard 1/4" driver sockets and accessories

How to use

Attach the 1/4" input end of the extension to the driver or ratchet until it engages. Push the 6.3 mm output socket onto the extension until it seats securely. Use steady, controlled force when applying torque and avoid side loading. For torque-critical applications, verify tool calibration and ensure the extension is fully seated before applying rated torque values.

Usage recommendations

Inspect the connection for wear or deformation before each use. Keep the extension clean and free of debris to ensure positive engagement. When working in corrosive environments, consider appropriate surface protection and routine maintenance to preserve fit and performance.