Proto J5428M 28mm 12-point 1/2 Drive Hand Socket

Product Description

The PROTO J5428M is a 28 mm, 12-point hand socket built for professional fastener work in mechanical, industrial, and maintenance applications. It accepts a 1/2 inch drive and measures 1-25/32 inches in overall length, making it a standard-length socket suited to confined spaces where a deep socket would be unnecessary. Constructed from alloy steel with a chrome-plated finish, it resists corrosion and surface wear under regular shop use. This socket meets ASME B107.110-2012, AS4984A, and SAE AS955 standards, confirming compliance with recognized dimensional and performance requirements for hand sockets.

This socket is used in automotive, fleet, and general mechanical service work where a 28 mm fastener size is encountered. It is suited to under-hood work, suspension components, drivetrain service, and industrial equipment maintenance. The 12-point configuration allows more ratchet engagement positions in tight working areas compared to a 6-point socket, making it a practical choice for technicians working in restricted access locations.

Key Features

• 28 mm socket size with 12-point configuration for increased ratchet engagement positions
• 1/2 inch drive compatible with standard ratchets, breaker bars, and torque wrenches
• Standard length at 1-25/32 inches overall for general-purpose fastener access
• Alloy steel construction for strength under high-torque applications
• Chrome-plated finish for corrosion resistance and surface durability
• Meets ASME B107.110-2012, AS4984A, and SAE AS955 standards

Compatibility

Designed as an OEM-style professional hand socket compatible with standard 1/2 inch drive ratchets, extensions, and torque wrenches used in automotive and industrial service applications.

Installation Notes

Installation is performed by licensed mechanics or qualified maintenance technicians. Inspect the socket for cracks or deformation before use and do not use damaged sockets under torque load. Always match the drive size of the socket to the drive size of the ratchet or torque wrench being used. Follow applicable workplace safety standards and equipment manufacturer torque guidelines when fastening or loosening components.