

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The WILLIAMS COMFORT PRODUCTS QZX52A is a torque wrench head designed for high-load fastening applications requiring precise rotational force. It features a 1 5/8 inch, 12-point box end with a 15-degree offset angle, allowing access to fasteners in tight or angled spaces. The Z-type shank measures 0.990 inches and connects to compatible torque wrench handles. Maximum rated torque is 480 foot-pounds, making this head appropriate for heavy-duty bolted connections found in mechanical, industrial, and HVAC equipment installations. Trade professionals select offset box-end heads when a straight drive path is obstructed or when a shallow approach angle is required.
This torque wrench head is suited for mechanical service work involving large-diameter fasteners on compressors, flanged pipe connections, structural equipment mounts, and similar heavy mechanical assemblies. The SAE sizing and 12-point contact pattern support use on standard inch-system hardware. The 15-degree offset geometry aids access in confined installations where a standard straight-head wrench cannot seat properly on the fastener.
Designed for use with compatible Z-shank torque wrench handles accepting a 0.990 inch shank diameter. Consult your torque wrench handle documentation to confirm shank compatibility before installation.
This head is installed by trade mechanics and service technicians working on heavy mechanical equipment. Ensure the shank is fully seated and locked into the torque wrench handle before applying load. Never exceed the rated maximum torque of 480 foot-pounds. Inspect the head for cracks or deformation before each use and remove from service if damage is found.
Thanks for subscribing!
This email has been registered!