Proto J5528M 3/4 Drive 12-point Hand Socket 28 Mm

Product Description

The PROTO J5528M is a 3/4-inch drive, 12-point hand socket designed for heavy-duty fastener work in professional trade and industrial environments. Built from alloy steel with a satin finish, it accepts a 28 mm fastener and measures 2-7/32 inches in overall length, placing it in the standard-length category. The 12-point configuration allows engagement at 30-degree increments, giving technicians more swing options in confined spaces. Licensed professionals working in mechanical, automotive, and industrial maintenance rely on sockets of this type for torque-demanding applications where a quality tool standard is required.

This socket is suited for residential and commercial mechanical work where 3/4-inch drive tooling is standard practice. Typical applications include heavy equipment maintenance, industrial assembly, fleet service, and structural fastener work. The 28 mm size addresses larger fastener heads common in truck and heavy machinery service. Technicians working on HVAC equipment, large pumps, compressors, or structural mechanical systems will find this size frequently in rotation.

Key Features

• 28 mm socket size for large fastener applications
• 3/4-inch drive for high-torque tool compatibility
• 12-point design allows 30-degree engagement increments
• Alloy steel construction for durability under high torque loads
• Satin finish reduces glare and resists corrosion in service conditions
• Meets ASME B107.110-2012 standard for hand socket performance

Compatibility

Designed as a standard 3/4-inch drive hand socket compatible with 3/4-inch drive ratchets, breaker bars, torque wrenches, and impact adapters that accept hand sockets.

Installation Notes

Installation and use of this socket should be performed by qualified tradespeople familiar with proper torque procedures. Confirm the drive tool and socket are fully engaged before applying load to avoid rounding the fastener or damaging the drive interface. Do not use hand sockets on impact drivers without a rated impact adapter. Inspect the socket for cracks or deformation before each use, and retire any socket showing signs of wear or damage.