Proto J5544 1-3/8 in 12-point 3/4 Drive Hand Socket

Product Description

The PROTO J5544 is a 1-3/8 inch, 12-point hand socket designed for heavy-duty fastener work with a 3/4 inch square drive. Constructed from alloy steel with a chrome-plated finish, this standard-length socket measures 2-9/32 inches overall and weighs 0.83 pounds. It meets ASME B107.110-2012 and SAE AS954G standards, making it a reliable choice for mechanics, maintenance technicians, and industrial tradespeople who need a durable, specification-grade socket for demanding applications.

This socket is suited for use in automotive, heavy equipment, and general industrial maintenance settings where large fasteners require a 3/4 inch drive tool. The 12-point design allows engagement from multiple positions, which is useful in tight or awkward access points. It is a standard-length socket appropriate for bench work, floor work, and equipment overhaul tasks where extended reach is not required.

Key Features

• 1-3/8 inch socket size for large fastener applications
• 12-point design allows multiple engagement positions on hex fasteners
• 3/4 inch square drive for use with heavy-duty ratchets and breaker bars
• Alloy steel construction with chrome-plated finish for corrosion resistance
• Meets ASME B107.110-2012 and SAE AS954G standards
• Standard length at 2-9/32 inches overall

Compatibility

Designed for use with 3/4 inch drive ratchets, extensions, and breaker bars in standard hand tool configurations.

Installation Notes

Install and remove by a qualified mechanic or maintenance technician using appropriate 3/4 inch drive hand tools. Ensure the socket is fully seated on the fastener before applying torque to avoid rounding. Inspect the socket for cracks or wear before use. This part is not tether capable and should not be used in elevated work environments where dropped-tool protocols require tethered equipment.