Proto J1077M Offset Box End Wrench 12 Point Double End

Product Description

The PROTO J1077M is a double-end offset box end wrench built for professional trade use in tight or awkward fastener locations. The offset head geometry gives knuckle clearance when working in recessed or confined spaces, while the 12-point box end configuration allows for better grip on hex fasteners with 30-degree handle rotation increments. Constructed from steel with a polished finish, this wrench is designed for durability under repeated use in industrial, mechanical, and field service environments. It is a non-ratcheting design, meaning torque is applied in one direction per stroke.

The J1077M suits applications where a standard box end wrench lacks the clearance needed to turn a fastener. Common install scenarios include equipment maintenance, pipe fitting support work, structural fastening, and mechanical assembly. Electricians, plumbers, HVAC technicians, and general maintenance professionals reach for offset box end wrenches when socket sets cannot access the work area. The double-end design provides two drive sizes in a single tool, reducing the number of tools needed on the job.

Key Features

• Offset box end head provides knuckle clearance in confined or recessed fastener locations
• 12-point configuration allows engagement at 30-degree increments for limited-swing situations
• Double-end design delivers two wrench sizes in one tool
• Steel construction for durability under sustained torque loads
• Polished finish for corrosion resistance and easy cleaning
• Non-ratcheting design for straightforward, reliable torque transfer

Compatibility

Designed as a standard offset box end wrench suitable for hex fasteners commonly found in mechanical, HVAC, plumbing, and electrical equipment maintenance applications.

Installation Notes

This wrench is installed by hand and requires no special tools or codes for use. Always ensure the box end is fully seated on the fastener before applying torque to avoid rounding. Follow the equipment manufacturer torque requirements for the fastener being turned. Inspect the wrench for cracks or deformation before each use and remove from service if damage is found.