Hook wrenches

Hook wrenches have a working element made in the shape of an arc with a hook at its end. They are used for operations with cylindrical fasteners that do not have facets. For instance, these tools will be very useful when working with fasteners in the area where shock struts are located.

Hook wrenches: 7 important facts

1. Most often, the material they are made of is steel. There are also models made of spark-proof alloys. Besides, these tools differ depending on the type of coating that protects them from corrosion. For example, it can be chromium or zinc. With a protective coating, the tools can well withstand the use in conditions of high humidity. Manufacturers often use a copper coating as it reduces the risk of sparks.
2. The opening of the working element of hook wrenches can’t be adjusted. The solid devices of this kind can well withstand significant loads and, as a rule, are inexpensive. There are also models that allow to adjust the size of the opening in accordance with the size of the car part. For this purpose, their design features a hinge. Before using such a device, it is necessary to make sure that it is properly adjusted.
3. Most often, the fastener can be loosened due to the pressure you exert on the tool handle. However, there are models intended to be used together with striking tools.
4. It is allowable to only use clean and dry tools. Otherwise, when being used, the device can slip off the part and cause injuries.
5. You should get down to work only after checking the device integrity. In particular, there must be no deformation, cracks or chips.
6. You shouldn’t apply too much force when working. Otherwise, you can damage both the fastener and the wrench itself.
7. It is necessary to protect the tools from moisture. A well-ventilated place should be chosen for storage.

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