Socket adapter 1/4" to 5/16" 12-point Unior 616874

Unior socket adapter 1/4" to 5/16" 12-point is a compact drive adapter that enables the use of 5/16-inch sockets with 1/4-inch drive tools. Designed for hand ratchets, torque wrenches and socket sets, the adapter provides a 12-point engagement profile that supports reliable torque transfer and a secure fit between drive and socket. Constructed to meet typical workshop demands, it simplifies transitions between tool sizes without the need for additional adapters or separate socket sets.

Advantages

The 12-point configuration offers precise alignment and multiple engagement positions for easier access in confined spaces. Its compact form factor reduces interference when working near obstructions and allows quicker socket changes. The adapter ensures consistent torque transmission from a 1/4-inch drive to a 5/16-inch socket, offering compatibility across common hand tools while minimizing play or slippage.

Suitable for

• Mechanical and automotive maintenance where mixed drive sizes are used
• Assembly and disassembly of small fasteners with 5/16-inch sockets
• Precision work with torque wrenches requiring a 1/4-inch drive

Key specifications

• Drive conversion: 1/4-inch (male) to 5/16-inch (female)
• Engagement type: 12-point
• Application: hand ratchets, torque wrenches, socket sets
• Form factor: compact adapter for tight access

How to use

Attach the male 1/4-inch end of the adapter to the drive tool until it seats securely, then fit the 5/16-inch socket onto the adapter's female end. Confirm a firm 12-point engagement before applying torque. Use steady, controlled force with hand tools and follow the torque limits of the tool and socket being used to avoid overloading. For torque wrenches, set the required torque value and apply force smoothly while maintaining alignment between tool, adapter and fastener.

Usage recommendations

Inspect the adapter and mating tools for wear or damage before each use. Use the adapter only within the rated capacity of the smallest component in the drive-socket assembly. Store in a dry toolbox to prevent corrosion and keep the engagement surfaces clean for reliable performance.