Williams Comfort Products QJOM9A Torque Wrench Head 9MM

Product Description

The WILLIAMS COMFORT PRODUCTS QJOM9A is a 9 MM open-end torque wrench head designed for precision fastening applications in mechanical, HVAC, and plumbing service work. It accepts a J-type shank measuring 0.425 inches and delivers a maximum torque output of 14 ft-lb. The compact form factor — 2.9 inches wide, 0.6 inches tall, and 0.4 inches in length — makes it well-suited for confined spaces where a full torque wrench cannot be maneuvered. Technicians use interchangeable torque wrench heads like this one to extend the range of an existing torque wrench drive system without investing in additional full-length tools.

This open-end torque wrench head is intended for metric fastener applications where a 9 MM jaw fits the fastener specification. It is sold individually and fits into service workflows across residential and light commercial settings. Typical applications include tightening fittings, brackets, and hardware assemblies in HVAC equipment, refrigeration systems, plumbing connections, and general mechanical service where controlled torque is required to avoid over-tightening or damage to components.

Key Features

• 9 MM open-end jaw for metric fastener compatibility
• J-type shank with 0.425-inch shank size for use with compatible torque wrench drives
• Maximum torque rating of 14 ft-lb
• Compact profile: 2.9 inches wide and 0.6 inches tall for tight-access installation
• Lightweight construction at 0.07 pounds — minimal added weight to the tool setup
• Sold individually (each)

Compatibility

Designed for use with J-type torque wrench drive systems that accept a 0.425-inch shank. Confirm shank compatibility with your existing torque wrench before installation.

Installation Notes

Installation and use of this torque wrench head should be performed by a qualified technician familiar with torque wrench systems and fastener specifications. Verify that the J-type shank seats fully and securely in the torque wrench drive before applying load. Do not exceed the 14 ft-lb maximum torque rating. Follow all applicable manufacturer guidelines and relevant trade codes when fastening components in HVAC, plumbing, or mechanical systems.

Technical Specifications

• Head Size: 9 MM
• Head Type: Open End
• Shank Type: J
• Shank Size: 0.425 inches
• Maximum Torque: 14 ft-lb
• Width: 2.9 inches
• Height: 0.6 inches
• Length: 0.4 inches
• Weight: 0.07 pounds
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJOM9A