Williams Comfort Products QJXM21A Torque Wrench Head 21 Mm

Product Description

The WILLIAMS COMFORT PRODUCTS QJXM21A is a 21 MM metric torque wrench head designed for precision fastening in professional trade applications. Featuring a J-type shank with a 0.425-inch shank diameter and a 12-point socket configuration, this wrench head delivers controlled torque up to 60 ft-lb. The 12-point design allows for greater rotational access in tight spaces, making it a practical choice for mechanical and HVAC technicians working on equipment with limited clearance. It is sold individually and is suited for use with compatible CDI torque wrench drives.

This torque wrench head is intended for use in commercial and residential service environments where precise torque application is required. Typical applications include fastening bolts and fittings on HVAC equipment, refrigeration units, and mechanical assemblies where over-torquing or under-torquing can cause equipment damage or warranty issues. It is commonly used by HVAC technicians, pipefitters, and mechanical contractors who require accurate, repeatable torque values during installation or maintenance.

Key Features

• 21 MM metric socket size for standard metric fasteners
• 12-point configuration for increased contact angles and access in confined spaces
• J-type shank with 0.425-inch shank diameter for compatible torque wrench drives
• Maximum torque rating of 60 ft-lb for controlled fastening
• Compact profile: 0.7 inches in length, 3.9 inches in width, 1.1 inches in height
• Lightweight at 0.2 pounds for reduced hand fatigue during extended use

Compatibility

Designed for use with CDI torque wrench drives accepting a J-type shank with a 0.425-inch shank diameter.

Installation Notes

Installation should be performed by a qualified technician familiar with torque specifications for the fasteners being serviced. Verify that the torque wrench drive and this head are fully seated and locked before applying torque. Do not exceed the rated maximum torque of 60 ft-lb to avoid damage to the tool or fastener. Refer to the equipment manufacturer's service documentation for required torque values.

Technical Specifications

• Socket Size: 21 MM
• Shank Size: 0.425 inches
• Shank Type: J
• Point Type: 12 Point
• Maximum Torque: 60 ft-lb
• Length: 0.7 inches
• Width: 3.9 inches
• Height: 1.1 inches
• Weight: 0.2 pounds
• Unit of Measure: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJXM21A