Proto J1228MASD Combination Wrench 28 Mm Satin Steel

Product Description

The PROTO J1228MASD is a 28 mm combination wrench built for professional tradespeople who need a reliable, long-service open-end and box-end tool in a single piece. The box end features a 15-degree offset angle with a 12-point configuration, allowing better access to fasteners in confined spaces. The wrench measures 14-7/8 inches overall and is constructed from steel with a satin finish that resists corrosion and reduces glare. It meets ASME B107.100 standards and carries a lifetime warranty. Tether-capable design supports compliance with drop-hazard safety programs on elevated work sites.

This wrench suits a wide range of industrial, mechanical, and maintenance applications. The 28 mm opening targets metric fasteners common in heavy equipment, commercial HVAC machinery, industrial piping systems, and structural assemblies. The straight handle and satin steel construction make it practical for both shop bench work and field service. It is appropriate for any licensed mechanic, millwright, pipefitter, or maintenance technician working with metric fasteners in demanding environments.

Key Features

• 28 mm head size fits standard metric fasteners
• 15-degree offset box end improves clearance in tight spaces
• 12-point box end for multiple contact angles on fasteners
• Tether-capable design supports tool drop-prevention programs
• Corrosion-resistant satin finish reduces surface wear and glare
• Meets ASME B107.100 standard; backed by a lifetime warranty

Compatibility

Designed as a standard metric combination wrench for use with 28 mm fasteners across industrial, mechanical, and maintenance applications.

Installation Notes

Installation and use should be performed by qualified tradespeople familiar with proper hand tool technique. Always confirm the wrench size matches the fastener before applying torque to avoid rounding. When working on energized or pressurized systems, follow applicable lockout/tagout procedures before using hand tools. If used at height, attach the tether point to an approved tool lanyard in accordance with the site fall-protection program.