Proto J54413/4 Hex Bit Socket 1/2 in Drive 3/4 in Hex

Product Description

The PROTO J54413/4 is a hand hex bit socket designed for professional trade use with a 1/2 inch square drive. It accepts a 3/4 inch hex bit and delivers reliable torque transfer in tight or demanding fastening applications. The socket measures 4 inches overall length with a 2 inch bit length, giving technicians adequate reach for recessed fasteners. Built to GGG-W-641e federal specification standards, this socket suits electricians, HVAC technicians, plumbers, and maintenance professionals who need a dependable hex drive tool in their socket set.

This hex bit socket is suited for both residential and commercial maintenance and installation work. It is commonly used when driving large hex-head fasteners or set screws on equipment, panels, and mechanical assemblies. The 3/4 inch hex size covers heavy-duty fastener applications where standard hex keys lack the torque capacity or handle leverage of a ratchet-driven socket setup. A 1/2 inch drive ratchet, breaker bar, or torque wrench is required for use.

Key Features

• 1/2 inch square drive for use with standard ratchets, breaker bars, and torque wrenches
• 3/4 inch hex bit size for large hex fasteners and set screws
• 4 inch overall length with 2 inch bit engagement length for reach into recessed areas
• Meets GGG-W-641e federal specification standard for hand tools
• Single-piece socket configuration for direct hex drive without adapters

Compatibility

Designed for use with any standard 1/2 inch drive ratchet, torque wrench, or breaker bar. Compatible with 3/4 inch hex fasteners across mechanical, electrical, and HVAC equipment.

Installation Notes

This socket is installed and operated by hand using a compatible 1/2 inch drive tool. Ensure the drive tool is rated for the torque required by the fastener application before use. Inspect the socket for cracks or wear before each use, and do not use impact drivers unless the socket is rated for impact service. Proper fastener engagement into the full bit length reduces the risk of rounding hex recesses.