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The WILLIAMS COMFORT PRODUCTS JHW1199BL is a combination wrench with a 3-inch opening designed for heavy-duty fastener work. It features a 12-point rounded box end with a SUPERTORQUE box opening that applies wrenching force to the flat surfaces behind fastener points rather than the corners, reducing the risk of rounding or deforming hex fasteners under high torque. The open end uses a SUPERCOMBO profile with specially designed grooves that redirect force away from fastener corners. Both the box and open end openings are identical in size. This wrench is built for professionals who need reliable torque application on precision or high-load fasteners.
The JHW1199BL is suited for maintenance, repair, and assembly work across industrial, mechanical, and trade environments where 3-inch fasteners are encountered. The 12-point box end meets aerospace specification AS 954 for 12-point fasteners as defined by AS 870, making it appropriate for precision torque applications. The open end design also offers considerable performance advantages over conventional open-end wrenches on standard 6-point hex fasteners, adding flexibility to a technician's hand tool set.
Designed for use on 12-point fasteners meeting AS 870 specifications and all common 6-point hex fasteners with a 3-inch opening. Meets Federal Specification ANSI B107.6 and SAE AS 954.
This wrench is a hand tool intended for use by mechanics, millwrights, and trade professionals working on large fasteners. Always confirm the fastener size matches the 3-inch opening before applying torque. Inspect the wrench for cracks or wear before each use and do not use extension bars or cheater pipes on combination wrenches, as this can exceed safe load limits and damage the tool or fastener.
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