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The WILLIAMS COMFORT PRODUCTS JHW1212SC is a combination wrench with a 3/8 inch opening and an overall length of 6.5 inches. It features a SUPERCOMBO open end and a SUPERTORQUE box end, both ground to the same 3/8 inch size. The SUPERTORQUE box end contacts the flat surfaces of the fastener rather than the corners, allowing higher torque application without rounding or deforming hex points. The SUPERCOMBO open end uses specially designed grooves to redirect wrenching force away from fastener corners. This wrench is installed and used by mechanics, HVAC technicians, and maintenance tradespeople working with hex fasteners in tight spaces.
The JHW1212SC is suited for both residential and commercial maintenance applications where 3/8 inch fasteners are common. The matching box and open end openings make it a flexible single-tool option for a range of service tasks. It meets aerospace specification AS 954 for 12-point fasteners as defined by AS 870, making it appropriate for precision torque applications as well as general-purpose wrench work. It is compatible with all common 6-point hex fasteners and can be used where conventional box end wrenches are limited.
Designed for use with 3/8 inch hex fasteners in standard 6-point and 12-point configurations across residential and commercial service applications.
This wrench is a hand tool intended for use by qualified tradespeople. Select the correct opening size before applying torque to avoid fastener damage. Inspect the wrench for cracks or deformation before each use and do not use a damaged wrench. Follow applicable torque specifications from the equipment manufacturer when used in precision applications.
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