Proto J8184-T500 Double Box End Wrench 3/4 X 7/8 in 12 Pt

Product Description

The PROTO J8184-T500 is a double box end wrench sized at 3/4 inch and 7/8 inch, designed for professional fastener work across mechanical, plumbing, HVAC, and electrical trade applications. Built from steel with a polished finish, it features 12-point box ends on both sides, allowing engagement on hex fasteners in confined spaces where open-end wrenches cannot seat properly. The double-end configuration gives a tech two common sizes in a single tool, reducing the number of wrenches needed on the job. At 0.88 pounds and 11.5 inches in length, it is sized for one-handed use on standard and heavy-duty fasteners. It meets ASME B107.10 standards and carries a lifetime warranty.

This wrench suits residential and commercial mechanical service work where 3/4 inch or 7/8 inch fasteners are common, including equipment mounting hardware, pipe flanges, valve stems, and structural connections. It is appropriate for licensed HVAC technicians, plumbers, electricians, and general maintenance professionals who need a reliable hand tool that conforms to recognized dimensional standards. The polished steel finish resists surface corrosion and allows easy cleaning after use in field conditions.

Key Features

• Double box end configuration provides 3/4 inch and 7/8 inch sizes in one tool
• 12-point design allows 30-degree arc swing for use in tight clearances
• Polished steel finish for corrosion resistance and easy cleaning
• Meets ASME B107.10 dimensional and performance standards
• Lifetime warranty coverage
• Non-ratcheting design for straightforward, reliable torque transfer

Compatibility

Designed as a standard double box end wrench for use on 3/4 inch and 7/8 inch hex fasteners across a wide range of mechanical, HVAC, plumbing, and electrical service applications.

Installation Notes

This wrench is a hand tool requiring no installation. Ensure the box end is fully seated on the fastener before applying torque to prevent rounding. Inspect the wrench for cracks or deformation before use. Follow applicable trade codes and safe torque practices for the fastener material and grade being worked.