Proxxon adapter 3/8" to 1/2" model 23566

The Proxxon adapter 3/8" to 1/2" model 23566 is a compact mechanical socket drive adapter designed to convert between 3/8-inch and 1/2-inch square drives. Built for workshop and repair applications, the adapter provides a precise fit that enables the use of sockets and accessories of one drive size with tools or ratchets of the other size. Its simple construction supports both hand and powered tool use where a reliable drive-size conversion is required.

Advantages

This adapter delivers a secure, low-profile connection between 3/8" and 1/2" square drives, reducing the need to change tools or carry multiple drive sizes. The conversion is straightforward and reversible, allowing quick swapping of sockets and accessories. The adapter is suitable for repetitive workshop tasks and occasional on-site repairs, providing dimensional accuracy for consistent torque transfer when used within the recommended tool and socket ranges.

Suitable for

• Converting 3/8" ratchets to accept 1/2" sockets
• Using 3/8" sockets with 1/2" drive power tools
• General workshop maintenance and vehicle repair
• Situations where carrying multiple drive sizes is impractical

Key specifications

• Drive conversion: 3/8" square drive to 1/2" square drive
• Material: durable metal construction for mechanical strength
• Finish: machined surface to ensure accurate fit (protective coating where applicable)
• Connection type: male-to-female square drive interface with detent/recess compatibility
• Intended use: hand and compatible power tools within standard torque ranges

How to use

Insert the adapter's male square drive into the female recess of the driving tool (ratchet or power tool) until it seats securely. Attach the desired socket to the adapter's opposite square end and ensure any retaining ball or detent engages to prevent accidental separation. Operate the tool within recommended torque limits and avoid side-loading or impacts that could damage the adapter or connected accessories. After use, remove the socket by depressing the detent and pulling the socket off the adapter, and store the adapter in a toolbox or socket rail for future use.

Usage recommendations

Use the adapter for occasional drive-size conversion and general maintenance work; avoid using it as a permanent substitute for the correct drive-size tools when high torque or heavy-duty applications are required. Regularly inspect the adapter and mating interfaces for wear or deformation, and replace it if fit becomes loose or surfaces show significant damage.