Universal wrench from a bicycle chain: step-by-step instructions with a photo

A real master does not lose anything, everything goes into action. A useful tool can literally be made out of junk, and you wonder how such a thing can come in handy. And much of what you do with your own hands will last for many years. Take a bicycle chain, for example. You can make a hot stand out of it, if you roll up a ring, a vase, candlestick, original photo frame and even cufflinks. Or - a versatile tool that will come in handy in the workshop. If this option suits you, then be sure to check out the experience of the author of the YouTube channel. Creates DIY. He proposed to make a key out of this material, which is able to cope with very difficult tasks.

Read in the article

  • 1 What you need to make a bike chain universal wrench
  • 2 How to assemble a key from a chain: step by step photos
  • 3 How to use the master key

What you need to make a bike chain universal wrench

Of the skills, the ability to work with a welding machine will come in handy. As for the materials, prepare a long bolt and a large nut or threaded stud. It would also be nice to find a comfortable wooden handle.

In addition to the welding machine, you will need a handy vice and pliers. All the work will take half an hour.

Universal wrench from bicycle chain
PHOTO: YouTube.com
If you have not removed the chain before, then this is quite simple: find the connection point, remove the lock and disconnect the links.

How to assemble a key from a chain: step by step photos

To make a key, not the whole chain is needed, so you can make a couple of keys from one piece and share your homemade product with your friends.

A chain section of about 30 cm is enough. To separate part of the chain, knock the pins from one link. It is convenient to do this with a bolt on a large nut. You can just cut the link with a grinder and remove the debris
PHOTO: YouTube.com
A chain section of about 30 cm is enough. To separate part of the chain, knock the pins from one link. It is convenient to do this with a bolt on a large nut. You can just cut the link with a grinder and remove the debris
The ends of the chain section must be fastened to the nut. Clamp them in a vice, as shown in the photo, so it will be convenient to work with welding, you will have free hands, and the connection will be as strong as possiblePHOTO: YouTube.com
The ends of the chain section must be fastened to the nut. Clamp them in a vice, as shown in the photo, so it will be convenient to work with welding, you will have free hands, and the connection will be as strong as possible
This is what the main part of the key looks like. If you're into aesthetics, the brew area can be cleaned and painted along with the chain.PHOTO: YouTube.com
This is what the main part of the key looks like. If you're into aesthetics, the brew area can be cleaned and painted along with the chain.
Now you need to screw a long bolt into the nut. It should be at least 20 cm long so that it is convenient to install the handle and use the key. Optimal - a hairpin with a length of 30 cmPHOTO: YouTube.com
Now you need to screw a long bolt into the nut. It should be at least 20 cm long so that it is convenient to install the handle and use the key. Optimal - a hairpin with a length of 30 cm
A handle must be fitted to the bolt, so the head of the bolt will have to be cut off. To do this, you need a hacksaw for metal or a grinder with a cut-off wheelPHOTO: YouTube.com
A handle must be fitted to the bolt, so the head of the bolt will have to be cut off. To do this, you need a hacksaw for metal or a grinder with a cut-off wheel
A piece of wood or a finished piece that can be given a second life is useful as a handle. Drill the hole with a suitable drill and screw the bolt directly onto the handle. Alternatively, you can simply weld the cross pin into the studPHOTO: YouTube.com
A piece of wood or a finished piece that can be given a second life is useful as a handle. Drill the hole with a suitable drill and screw the bolt directly onto the handle. Alternatively, you can simply weld the cross pin into the stud

This completes the work, the key is ready, and you can use it immediately.

How to use the master key

This wrench is useful for unscrewing a large diameter part.

You just need to throw the chain around the part and screw the bolt so that it becomes a stop for the chain. Then a slight turn of the handle - and your task is completed.PHOTO: YouTube.com
You just need to throw the chain around the part and screw the bolt so that it becomes a stop for the chain. Then a slight turn of the handle - and your task is completed.
With such a key, you can unscrew not only some details, but also, for example, a screw cap from a can, it is very simple and convenientPHOTO: YouTube.com
With such a key, you can unscrew not only some details, but also, for example, a screw cap from a can, it is very simple and convenient

Such a universal wrench will also come in handy in plumbing work. To unscrew the pipe, you can not weld the chain to the nut on both sides, but fix it only on one side, and make a strong hook on the second. Then you just throw in the chain, fix it with a hook and you can use the key in the most difficult to reach place. Instead of the hook, you can use the same chain lock that you removed originally. Users who repeated this experience noted that it is very convenient to unscrew the oil filter in the car with such a tool.

And here is another modification of the same key, perhaps it will seem more practical to you:

How do you rate the idea of ​​reusing a bicycle chain? Are you using a similar key? Share your opinion in the comments!

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