I'll show you how to make a simple drill from an ordinary nail, with which you can drill steel, wood, plastic, etc. Yes, you read everything correctly, with this drill you can drill thick steel of about 5 mm. Ingenuity is a good thing; it will always help you out in difficult life situations. So, to increase the level of self-development, I suggest you familiarize yourself with this method. Perhaps it will be useful in life.
Making a metal drill from a nail
We take a nail and grind off its tip using sandpaper. There is no need to do this completely, about half.
Use a hammer to flatten the end under a flathead screwdriver.
Next, use sandpaper to make cutting edges like a drill.
This is how it should turn out.
In principle, the drill is ready, but it can only drill wood, plastic or other soft metals.
Drill hardening - carburizing
To turn a drill into a metal drill, it must be hardened. To do this, we need a DC welding machine and a metal jar with crushed graphite. Graphite can be obtained from old brushes by grinding them with a file.
If you don't have a jar, you can use a piece of flat steel.We connect the positive electrode to the jar, and the negative electrode to the nail.
Turn on the welding machine.
We lower the cutting edge into graphite. As soon as the masa begins to turn red, lift the nail. The main thing here is not to burn everything that was carved. There is no need to overheat, move the nail to achieve a slight spark. The whole procedure lasts 1-2 minutes.
This method is called cementation. That is, the cutting edge is saturated with carbon, which in turn adds strength.
Next, we clamp it in a vice and saw off the cap.
A metal drill made from a nail is ready!
Metal tests
Let's move on to testing. We clamp the drill in the chuck of a vertical drilling machine.
And we drill the steel corner as with a regular drill, periodically spraying it with lubricant.
The hole is drilled.
Let's give it a second try.
The exit hole is drilled no worse than with a conventional drill.
Now the task is more difficult - checking the stainless steel. It is known that this cannot be done simply.
We also drill with lubricant.
A bit more.
The hole is drilled.
Of course, the strength of such a drill will not be enough for long. If you drill into wood, then in principle it will work, but for steel the safety margin is limited to a few holes, it all depends on the thickness of the steel.
In difficult situations it can quite help out. Bye everyone!
Watch the video
For more detailed technology, see the video.
