A homemade universal chain key, which is quite easy to make from simple materials at hand, will certainly come in handy in the garage or home workshop.
To make it, you will need materials that are almost always at hand from a thrifty master. As a basis, the author uses an ordinary open-end wrench 22 by 19 millimeters.
Also for this homemade product you will need a bicycle chain, a section of a profile pipe 15 * 15 mm, a bolt and a nut with a diameter of 8 mm. First you need to saw off the two spanners of the key with a grinder or a hacksaw for metal.
Steps for making a universal chain key
We weld a section of the profile pipe to one end of the workpiece (after making a hole for the bolt and welding the nut), and to the other end - a bicycle chain. Now, with a bolt, you can lock the chain around the nut.
There are really many advantages to this key. For example, one such key fully replaces the shop keys, and the grip on this homemade product is many times better, which simplifies the loosening of rusted bolts or nuts, since the chain has a fairly movable structure.
The bicycle chain evenly wraps around the bolt or coupling over the entire diameter, which reduces the damage done to the structure when unscrewing. All the tools needed to make this key are affordable, and are available in almost every home.
Thanks to such a useful device, it is not difficult to unscrew any nut! The process of manufacturing a universal chain key from simple materials at hand can be seen in the video on the website.
