Proto J3138 Combination Wrench 1-3/16 in 15 Deg Offset

Product Description

The PROTO J3138 is a 1-3/16 inch combination wrench built for professional trade use in demanding service environments. It features a 15-degree offset head with a 12-point box end and a 60-degree opening angle on the open end, giving technicians flexibility in tight access points. The wrench is forged from steel with a polished finish and meets ASME B107.100-2010 standards. Overall length is 11.7344 inches, and the head thickness measures 3/8 inches. Corrosion resistance is built in, and the handle is tether capable for use in elevated or safety-critical work areas. Licensed tradespeople across HVAC, plumbing, electrical, and mechanical services rely on this wrench for fastener work where precise fit and durability matter.

The J3138 suits residential and commercial service calls, equipment installation, and maintenance work involving 1-3/16 inch fasteners. The straight handle and offset box end make it practical for torquing bolts in confined spaces such as equipment panels, pipe flanges, and structural assemblies. Its tether-capable design makes it appropriate for work at height or in environments with fall-hazard protocols, including rooftop HVAC installations and elevated mechanical rooms. The polished finish aids in visual inspection and cleaning between tasks.

Key Features

• 1-3/16 inch head size for precise fastener fit
• 15-degree offset head reduces knuckle clearance issues in confined spaces
• 12-point box end with 60-degree open end for versatile engagement
• Tether capable for compliance with dropped-object prevention programs
• Corrosion-resistant steel with polished finish for durability and easy cleaning
• Meets ASME B107.100-2010 hand tool standard
• Backed by a lifetime warranty

Compatibility

Designed as a standard combination wrench for use with 1-3/16 inch fasteners across mechanical, HVAC, plumbing, and electrical trade applications.

Installation Notes

This wrench is a hand tool used by licensed mechanical, HVAC, plumbing, and electrical tradespeople. No power source is required. When working on energized or pressurized systems, de-energize or depressurize the system before applying tools to fasteners. Inspect the wrench for cracks or deformation before each use and do not use extension bars or pipe cheaters on the handle, as this tool is not rated for impact or torque-multiplying applications.