Proto J1210A-TT Combination Wrench 5/16 Inch Tether Capable

Product Description

The PROTO J1210A-TT is a 5/16-inch combination wrench built for trade professionals who need a reliable, tether-capable hand tool in industrial and commercial environments. It features a 15-degree offset box end with a 12-point configuration, allowing engagement on fasteners in tight clearances. The wrench is manufactured from steel with a satin finish that reduces glare and provides corrosion resistance. At 5.375 inches overall length and 0.08 pounds, it is a compact, lightweight addition to any service tool kit. Compliance with ASME B107.100 confirms dimensional and performance standards that meet professional requirements.

This wrench is suited for HVAC, plumbing, electrical, and general mechanical applications where 5/16-inch fasteners are common. The tether-capable design makes it appropriate for elevated work environments and jobsites with dropped-tool protocols, including rooftop HVAC equipment service, elevated electrical panel work, and industrial maintenance. The straight handle and satin finish make it easy to clean and inspect after use. It is appropriate for both residential and commercial service work wherever compact, standards-compliant hand tools are required.

Key Features

• 5/16-inch head size with 15-degree offset box end for clearance in confined fastener locations
• 12-point box end engages fasteners from multiple positions, reducing repositioning time
• Tether-capable design supports compliance with dropped-object prevention programs
• Steel construction with satin finish provides corrosion resistance and reduces surface glare
• Meets ASME B107.100 dimensional and performance standard
• Compact at 5.375 inches overall length and 0.08 pounds for easy carry and storage

Compatibility

Designed for use with 5/16-inch fasteners in standard SAE applications across HVAC, plumbing, electrical, and general mechanical service work.

Installation Notes

Installation and service with this wrench should be performed by qualified trade professionals following applicable codes and jobsite safety requirements. Power down or de-energize equipment before accessing fasteners on electrical or mechanical assemblies. When using in tethered applications, attach an approved tether lanyard to the tether point before beginning work. Inspect the wrench for cracks, deformation, or finish damage before each use and remove from service if defects are found.