Proto J5256B Socket Adapter 3/8 to 1/4 Inch Drive

Product Description

The PROTO J5256B is a drive socket adapter designed to connect a 3/8 inch male drive to a 1/4 inch female drive, allowing technicians to use 1/4 inch drive sockets with a 3/8 inch drive ratchet or torque wrench. The overall length is 31/32 inches, and the adapter measures approximately 1.5 inches in length by 0.9 inches in width and height in packaged form. Weighing just 0.04 pounds, this compact adapter is built for use in tight access areas where switching drive sizes is necessary. HVAC technicians, plumbers, electricians, and general trade professionals commonly keep drive adapters like this in their socket sets for flexible tool configurations on the job.

This adapter is suited for residential and commercial service work wherever a 3/8 inch drive tool needs to interface with 1/4 inch drive sockets. Typical applications include equipment panel work, mechanical room service, and any task requiring a smaller socket head driven by a larger ratchet. Its compact overall length of 31/32 inches keeps the tool profile low in confined spaces.

Key Features

• 3/8 inch male drive to 1/4 inch female drive conversion
• Overall length of 31/32 inches for use in tight spaces
• Lightweight at 0.04 pounds for easy carry in a tool bag or socket rail
• Single-piece adapter — no moving parts to wear or fail
• Packaged quantity of 1 per unit

Compatibility

Designed as an OEM-style replacement or direct addition to 3/8 inch drive socket sets requiring 1/4 inch drive socket compatibility.

Installation Notes

This adapter is installed by hand — press the 3/8 inch male end firmly into the ratchet or drive tool until the detent ball seats. Attach the 1/4 inch drive socket to the female end before applying torque. Do not exceed the rated torque capacity of the smaller 1/4 inch drive side. No special tools or codes are required for use.