Williams JHW1228YSC 7/8 Inch Combination Wrench Hi-vis Yellow

Product Description

The WILLIAMS COMFORT PRODUCTS JHW1228YSC is a 7/8-inch combination wrench built for trade professionals who need reliable torque performance on hex and 12-point fasteners. The open end uses a SUPERCOMBO design with grooves that redirect wrenching force away from fastener corners, reducing the risk of rounding. The box end uses a SUPERTORQUE design that places force on the flat surfaces behind the fastener points rather than on the corners themselves, allowing higher torque application without deforming fastener points. Both the box end and open end share identical 7/8-inch openings. The Hi-Vis Yellow finish aids visibility in low-light or cluttered work environments.

This wrench is suited for use by HVAC technicians, plumbers, electricians, pipefitters, and mechanical contractors working on residential and commercial equipment. It handles all common 6-point hex fasteners and meets aerospace specification AS 954 for 12-point fasteners as defined by AS 870, making it appropriate for precision and general trade applications alike. The combination of open and box end in a single tool reduces the number of wrenches needed on a service call.

Key Features

• SUPERCOMBO open end with grooved geometry directs force away from fastener corners
• SUPERTORQUE box end contacts flat surfaces behind fastener points, enabling higher torque without rounding
• Meets or exceeds aerospace specification AS 954 for 12-point fasteners per AS 870
• Compatible with all common 6-point hex fasteners, providing an advantage over conventional box end wrenches
• Box and open end openings are identical at 7/8 inch
• Hi-Vis Yellow finish for improved visibility on the job

Compatibility

Designed for use on all common 6-point hex fasteners and 12-point fasteners meeting AS 870 definitions, conforming to Federal Specification ANSI B107.6 for combination wrenches.

Installation Notes

This wrench is a hand tool requiring no power source or special installation. Before using on fasteners securing pressurized systems or electrical components, de-energize or depressurize the system per applicable codes and manufacturer procedures. Select the correct wrench size to avoid fastener damage. Inspect the wrench for cracks or deformation before each use and remove from service if damaged.

Technical Specifications

• Opening Size: 7/8 inch
• End Types: SUPERCOMBO Open End and SUPERTORQUE Box End
• Finish: Hi-Vis Yellow
• Length: 12.4 inches
• Width: 1.97 inches
• Height: 0.98 inches
• Weight: 0.957 pounds
• Standard: ANSI B107.6
• Aerospace Specification: AS 954 for 12-point fasteners per AS 870
• UPC: 662459901613

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW1228YSC