Proto J5428N 7/8 Inch 12-point 1/2 Drive Hand Socket

Product Description

The PROTO J5428N is a 7/8 inch, 12-point hand socket designed for use with a 1/2 inch drive ratchet or breaker bar. Built from steel with a chrome-plated finish, it measures 1-13/16 inches in overall length, placing it in the standard-length category. The 12-point configuration provides more engagement positions on fastener heads, which is useful when working in confined spaces with limited swing arc. This socket is intended for professional mechanics, maintenance technicians, and industrial tradespeople who need a durable, code-compliant hand tool for regular service work.

The J5428N fits standard 1/2 inch drive tooling and is suited for automotive, mechanical, and general industrial fastener applications. The 7/8 inch socket size covers a common fastener dimension found across machinery, equipment, and structural assemblies. Standard-length design is appropriate for most open-access fastener locations where a deep socket is not required.

Key Features

• 7/8 inch socket size with 12-point design for more rotational engagement positions
• 1/2 inch drive compatibility works with a wide range of ratchets and breaker bars
• Chrome-plated steel construction resists corrosion and wear under regular use
• Standard length at 1-13/16 inches overall for typical open-access fastener work
• Meets AS4984A, ASME B107.110-2012, and SAE AS954G standards
• Lifetime warranty from the manufacturer

Compatibility

Designed as a standard 1/2 inch drive hand socket compatible with 1/2 inch drive ratchets, breaker bars, and extensions from any manufacturer following standard drive sizing conventions.

Installation Notes

Install and remove fasteners with the socket fully seated on the drive tool before applying torque. Inspect the socket and drive tool for cracks or wear before use. Do not use impact drivers with this hand socket; use only hand-drive tools rated for the application.