What tool is used to twist the nut off the end of the Hi-Lok collar?

The dog bone wrench is specifically designed to work with Hi-Lok fasteners, which are often used in aerospace applications for assembly processes. Its unique design includes multiple sizes and openings to accommodate various sizes of Hi-Lok collars, allowing for a precise grip and application of torque. This is crucial for removing the nut at the end of the Hi-Lok collar effectively and without damaging the surrounding material or the fastener itself.

In contrast, while other tools may have applications in fastening or loosening nuts and bolts, they are not optimized for Hi-Lok collared applications. Rivet nut tools typically serve a different purpose, such as installing rivet nuts, while socket wrenches generally do not have the specific shape or fit needed for Hi-Lok collars. Pliers, though versatile, do not provide the necessary torque or precision required in this specific application, which makes the dog bone wrench the appropriate choice.