Proto J5228N Hand Socket 7/8 in 12-point 3/8 in Drive

Product Description

The PROTO J5228N is a 7/8-inch, 12-point intermediate hand socket designed for professional hand-tool use. Built from polished steel, it accepts a 3/8-inch drive and delivers reliable torque transfer on standard hex fasteners. At 1-47/64 inches in overall length, the J5228N fits the standard-length category, making it the right choice when clearance is not an issue and full socket engagement is preferred. Licensed tradespeople and skilled mechanics reach for this socket in automotive, industrial, and mechanical service applications where a 12-point profile provides multiple engagement positions on fasteners.

This socket is suited for general mechanical and maintenance work in residential, commercial, and light industrial settings. The 12-point design allows the socket to engage hex fasteners at 30-degree increments, useful in tight-swing situations. It is a single-piece hand socket intended for use with 3/8-inch drive ratchets, extensions, and breaker bars. Electricians, HVAC technicians, plumbers, and general mechanics working with bolted assemblies will find the J5228N a standard addition to a 3/8-inch drive set.

Key Features

• 7/8-inch socket size for common hex fastener applications
• 12-point profile allows engagement at 30-degree increments
• 3/8-inch drive size compatible with standard ratchets, extensions, and breaker bars
• Polished steel construction for durability and corrosion resistance
• Standard length at 1-47/64 inches overall for full fastener engagement
• Meets ASME B107.21 standards for hand socket performance

Compatibility

Designed as a standard OEM-style 3/8-inch drive hand socket for use with 3/8-inch drive ratchets, torque wrenches, and extension bars in professional and trade service applications.

Installation Notes

Install and remove using a 3/8-inch drive ratchet or torque wrench rated for the fastener application. Verify the socket seats fully on the fastener before applying torque to avoid rounding. Do not use hand sockets with impact drivers unless the socket is impact-rated. Inspect the socket for cracks or deformation before each use.