Proto J5222MH 3/8 Drive 6-point Hand Socket 22 Mm

Product Description

The PROTO J5222MH is a 6-point hand socket designed for 3/8-inch drive ratchets and breaker bars. Built from alloy steel with a chrome-plated finish, it accepts a 22 mm fastener and measures 33.3 inches overall length in a standard configuration. The 6-point geometry reduces the risk of rounding fastener corners compared to 12-point designs, making it a reliable choice for professional mechanics, maintenance technicians, and industrial tradespeople working with metric hardware in tight tolerances. It meets ASME B107.5 standards and carries a lifetime warranty.

This socket fits common metric fastener applications across automotive, heavy equipment, HVAC mechanical systems, and general industrial maintenance. The 22 mm size is frequently encountered on structural fasteners, mounting hardware, and mechanical assemblies in both residential and commercial service work. It is suited for hand-drive use with standard 3/8-inch drive ratchets, extensions, and flex heads.

Key Features

• 6-point design grips flat sides of fasteners, reducing rounding on stubborn or corroded hardware
• Alloy steel construction with chrome-plated finish for corrosion resistance and durability
• Standard length profile for general-access fastener work
• Meets ASME B107.5 socket standards
• Lifetime warranty
• Not tether capable — standard hand-use configuration

Compatibility

Designed for use with 3/8-inch drive ratchets, breaker bars, and extensions. Fits 22 mm metric fasteners in standard hand-drive applications.

Installation Notes

Install and remove with a 3/8-inch drive ratchet or breaker bar. Ensure the socket is fully seated on the fastener before applying torque to prevent slipping. Inspect the socket for cracks or wear before use on high-load fasteners. Chrome-plated hand sockets are intended for hand-torque applications and should not be used with impact drivers.