Williams Comfort Products 7731B-TH Box End Wrench

Product Description

The WILLIAMS COMFORT PRODUCTS 7731B-TH is a 12-point box end wrench sized 13/16 inches by 7/8 inches. Box end wrenches provide full engagement around a fastener head, reducing the risk of rounding during high-torque applications. The 12-point configuration allows fastener engagement every 30 degrees, making it useful in tight or restricted spaces where swing arc is limited. This wrench is a hand tool suited for mechanical, HVAC, plumbing, and general trade work wherever these two specific fastener sizes are encountered.

The 7731B-TH is appropriate for technicians who need a dedicated box end wrench in 13/16 inch and 7/8 inch sizes. These sizes appear frequently in HVAC equipment service, refrigeration piping connections, and mechanical assemblies. The double-ended design means one tool covers two fastener sizes, reducing the number of individual tools a technician needs to carry on the job.

Key Features

• 12-point box end profile allows engagement every 30 degrees for use in confined spaces
• Dual-size ends: 13/16 inches and 7/8 inches on a single tool
• Box end design fully encircles fastener head to reduce slippage and rounding
• Sold individually as a single unit

Compatibility

Designed as a general-purpose box end wrench suitable for use on standard fastener sizes encountered in HVAC, plumbing, and mechanical trade applications.

Installation Notes

This wrench is used by licensed HVAC technicians, plumbers, pipefitters, and general mechanics as a hand tool for tightening or loosening fasteners. Always ensure the correct size end is fully seated on the fastener before applying torque. When servicing HVAC or refrigeration equipment, power down the system and follow all applicable lockout/tagout procedures before beginning work.

Technical Specifications

• Drive Configuration: 12-Point Box End
• End Sizes: 13/16 inches x 7/8 inches
• Weight: 0.8 pounds
• Sold As: Each
• UPC: 662459336156

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 7731B-TH