Socket 3/4" 27 mm Dedra model 17A427Z, hexagonal with lanyard attachment

Dedra 3/4" 27 mm hexagonal socket model 17A427Z is a heavy-duty tool designed for use with a 3/4-inch drive ratchet, breaker bar or torque wrench. The 27 mm internal hex profile fits metric nuts and bolts, while the robust construction provides reliable torque transfer for demanding fastening and loosening tasks. An integrated lanyard attachment point allows secure tethering to prevent loss or accidental drops when working at height or in confined spaces.

Advantages

The socket is constructed to deliver consistent engagement with hexagonal fasteners, reducing the risk of rounding. Its 3/4" drive compatibility ensures compatibility with high-torque tools commonly used in automotive and industrial maintenance. The dedicated lanyard attachment offers additional safety and convenience for tool management. The 27 mm size covers a common range of metric fasteners found on heavy vehicles and machinery.

Suitable for

• Automotive repair and maintenance — wheel nuts, suspension and drivetrain components
• Industrial assembly and equipment servicing
• Workshop and garage use with high-torque hand tools
• Work at height where tool tethering reduces drop hazards

Key specifications

• Drive size: 3/4 inch
• Socket internal size: 27 mm (hexagonal)
• Profile: 6-point (hex) for secure fastener engagement
• Attachment feature: lanyard/tether point for secure handling
• Intended use: manual torque application with ratchets, breaker bars, or torque wrenches

How to use

Select the socket and attach it firmly to a compatible 3/4" drive tool such as a ratchet, breaker bar or torque wrench. Place the socket squarely onto the hexagonal nut or bolt head to ensure full contact before applying torque. When using the lanyard attachment, secure an appropriate tether or lanyard rated for your working conditions to prevent accidental drops. Use correct torque values and safe techniques appropriate to the fastener and application.

Usage recommendations

Inspect the socket for signs of wear or damage before use, and avoid using sockets with visible cracks or deformation. Match the socket size precisely to the fastener and use tools designed for the expected torque. Store the socket dry and clean, and keep the lanyard point clear of debris to maintain reliable attachment.