How to make a very cool keychain from ordinary nuts without a lathe

To make beautiful unusual accessories from metal, you don’t need to have a lot of machines and power tools. An example is making a keychain in the shape of a bullet, to assemble which it is enough to have a grinder and a drill.

Materials:

long stainless bolt M6-M10;
stainless steel nuts;
brass and copper nuts;
lanyard or key ring.

Keychain manufacturing process

The essence of the homemade product is that nuts are tightly screwed onto a long bolt, then ground into the shape of a bullet. To make the resulting accessory look beautiful, you need to alternate nuts from different metals, make a decorative relief on them, and also polish the finished bullet into a mirror.
Markings are applied to the nuts on which relief is planned to be made. It should be symmetrical.

Then shallow cuts are made along the marks.

On one nut they can be applied obliquely, on another across, on the third along or crosswise. It all depends on the flight of fancy. The main thing is that each cut is smooth and neat. It is optimal to do it with a grinder with a thin cutting disc.Each nut is naturally clamped in a vice.
After the notches, it should be screwed onto the bolt, and holding it in the drill chuck, grind the edges.

Another great way to decorate a nut is to make cuts on it with a round file. It takes a long time, but in the end it looks very nice on the finished bullet.

Next, you need to place prepared embossed and regular nuts on the bolt to suit your taste. You need to alternate them depending on the pattern and metal. You can place brass and copper washers between them. Subtle splashes of color also look interesting. The nuts need to be pressed as tightly as possible so that they do not unscrew.

The end of the bolt is clamped into a drill, and the workpiece is ground to the shape of a bullet. This can be done very quickly by using the included grinder and grinding wheel instead of a file. If you have a lathe, everything is even easier.

For beauty, you can make grooves on the bullets.

For this, files of various shapes are used. After rough processing, the workpiece is ground and polished.

Finally, the protruding part of the bolt is machined, drilled and trimmed.

A bunch of keys is inserted into the resulting hole.

Fans of self-defense accessories can make the bullet a little longer to get the original designer kubotan. In this case, you will need to use a thicker bolt and make the tip less sharp.