Williams Tools QJO28A J-series Open End Torque Head 7/8 in

Product Description

The WILLIAMS TOOLS QJO28A is an interchangeable J-Series torque head with a 7/8-inch open end configuration, designed to expand the capability of compatible adjustable torque wrench bodies. The head mounts to the drive end of a torque wrench body, allowing technicians to apply calibrated torque in fastener locations where a standard socket cannot reach. Finished in black, the head measures approximately 2.9 inches in length, 1.7 inches in height, and 0.4 inches in width, and weighs 0.265 pounds. It is sold as a single unit.

This torque head is suited for mechanical, HVAC, plumbing, and electrical trade work where precise torque application is required on hex fasteners. The open end profile allows access to flat-sided fasteners in tight or obstructed locations. It is particularly useful during equipment installation and service tasks where torque specifications must be met and a closed-end socket cannot engage the fastener from above.

Key Features

• Interchangeable design compatible with adjustable torque wrench bodies for calibrated torque delivery
• 7/8-inch open end opening size for standard hex fasteners
• Compact profile: 2.9 inches long, 1.7 inches tall, 0.4 inches wide
• Black finish for corrosion resistance and reduced glare in service environments
• Lightweight at 0.265 pounds for reduced fatigue during overhead or confined-space work

Compatibility

Designed as an interchangeable torque head for use with adjustable torque wrench bodies that accept J-Series interchangeable heads.

Installation Notes

Installation of this torque head is performed by mechanical, HVAC, plumbing, and electrical technicians using compatible torque wrench bodies. Ensure the torque wrench body is set to zero and the head is fully seated and locked before applying torque. Always verify that the target fastener torque specification is within the rated range of the torque wrench body in use. Follow applicable manufacturer torque specifications and relevant code requirements for the system being serviced.