Proto J74288P Impact Socket 1/2 in Drive 1-5/16 in 6-pt

Product Description

The PROTO J74288P is a 6-point impact socket designed for heavy-duty fastening applications in trade and industrial environments. Built from alloy steel, it accepts a 1/2 inch square drive and fits a 1-5/16 inch hex fastener. The overall length measures 3-19/64 inches. The 6-point socket geometry concentrates torque on the flat faces of a fastener rather than the corners, reducing rounding on stubborn or corroded hardware. This socket is suited for HVAC technicians, pipefitters, electricians, and general mechanical trades who work with impact wrenches and air tools in tight or demanding conditions.

This socket fits naturally into service work where 1-1/4 inch and 1-5/16 inch fasteners appear on flanges, equipment mounts, conduit fittings, and structural connections. The universal style designation indicates compatibility with standard impact driver setups in both residential and light commercial service environments. It is packaged as a single unit and is an appropriate addition to a professional impact socket set.

Key Features

• 6-point contact design reduces fastener rounding under high torque
• Alloy steel construction for impact-rated durability
• 1/2 inch square drive fits standard impact wrenches and ratchets
• 1-5/16 inch socket size for hex fasteners common in mechanical and HVAC applications
• Overall length of 3-19/64 inches for reach in typical service scenarios
• Meets ASME B107.2 specification for impact socket performance

Compatibility

Designed as an OEM-style replacement and professional-use impact socket compatible with standard 1/2 inch drive impact wrenches and ratchets used across HVAC, plumbing, electrical, and general mechanical trades.

Installation Notes

This socket is installed by a qualified technician using a 1/2 inch drive impact wrench or hand ratchet. Ensure the socket is fully seated on the fastener before applying torque to prevent slippage or fastener damage. Inspect the socket for cracks or deformation before each use, and do not use hand-socket extensions with impact tools unless those accessories are also impact-rated.