How to make a nail drill
I will show you how to make a simple drill from an ordinary nail, with which you can drill steel, wood, plastic, etc. Yes, you have read it all correctly, you can drill a thick steel of the order of 5 mm with this drill. Smarting thing is good, always help out in a difficult life situation. So, to increase the level of self-development, I propose to become familiar with this method. Perhaps useful in life.With a hammer, flatten the end under a flat screwdriver.Next on the sandpaper we make cutting edges like a drill.This is how it should turn out.In principle,The drill is ready, but only wood, plastic or other soft metals can be drilled.If there is no jar, you can use a piece of flat steel. Connect the positive electrode to the jar, and the negative to the nail. Turn on the welding machine.Omit the cutting edge and lower in graphite. As soon as Masa begins to blush, we pick up the nail. Here the main thing is not to burn everything that was carved. Overheating is not necessary, we drive a nail to achieve a small spark. The whole procedure lasts 1-2 minutes.This method is called cementation. That is, saturation of the cutting edge with carbon, which in turn adds strength.Then we clamp in a vice and saw off a hat.
Making a drill for metal from a nailWe take a nail and grind off the edge with emery. You do not need to do this completely, by about half.
Hardening of a drill - carburizingTo turn a drill into a metal drill, it needs to be hardened. For 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.
Tests on metalWe proceed to tests. We clamp the drill in the chuck of a vertical drilling machine.
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