Proto J5444H 1-3/8 Inch 6-point Hand Socket 1/2 Drive

Product Description

The PROTO J5444H is a 1-3/8 inch, 6-point hand socket designed for use with a 1/2 inch drive ratchet, breaker bar, or torque wrench. Built to ASME B107.1 standards, it features a chrome-plated finish that resists corrosion and makes it easy to wipe clean in the field. The standard-length body gives technicians the clearance needed for most fastener applications without adding unnecessary bulk. At 0.77 pounds, it is solid enough for heavy-use environments while remaining easy to handle. This socket suits professionals who need a reliable, code-compliant tool for mechanical, HVAC, plumbing, or industrial service work.

The J5444H is suited for trade professionals working on equipment fasteners, flanges, nuts, and bolts in the 1-3/8 inch range. Standard-length geometry makes it a practical choice for general service work where deep-reach sockets are not required. It fits into any 1/2 inch drive set and is appropriate for residential, commercial, and light industrial maintenance applications where ASME B107.1 compliance is specified or preferred.

Key Features

• 1-3/8 inch socket size for common large-fastener applications
• 1/2 inch drive compatibility works with standard ratchets, breaker bars, and torque wrenches
• 6-point contact geometry reduces fastener rounding under high torque
• Standard length body suits most open-access service scenarios
• Chrome-plated finish resists corrosion and simplifies cleaning
• Meets ASME B107.1 hand tool standards

Compatibility

Designed for use with any 1/2 inch drive ratchet, extension, or torque wrench as an OEM-style service socket for trade and industrial applications.

Installation Notes

This socket is intended for use by qualified trade professionals familiar with hand tool safety practices. Inspect the socket for cracks or deformation before each use and do not use damaged tools. Always ensure the drive connection is fully seated before applying torque. Do not use impact drivers with this hand socket unless it is rated for impact use.