Every man in the household has a drill or a screwdriver that can also successfully drill holes. And everyone knows that holes are drilled with a drill.
Here in the country with a child he built a bench, which was located next to the frame pool. The base of this bench was made of metal corners, the wall thickness of which is 4 millimeters.
There were a lot of holes to drill, the metal was not thin at all, so I drilled quickly enough were blunt, and in order for them to drill the next hole, they had to apply a sufficient amount effort.
At first I suffered, went to the store, bought more and more. But drills of this quality were obtained, which was enough for a maximum of 3-5 holes, and then they began to blunt again and again.
I'm tired of this business. I remembered that in the barn I have a grinder with an emery stone. I decided to use his services and sharpen dull drills.
Of course, I understood that there are many different gadgets that help when sharpening drills, to maintain the correct angle. I looked on the Internet, I found quite a few, but ...
It was necessary to make them first, and this time and gadgets that I simply did not have.
Somewhere it was advised to purchase a special machine for sharpening drills, but again it is time to find this machine, the train for it, and so on.
Therefore, I decided at random, with handles and by eye to maintain the correct angle. I still didn't lose anything, but I'll ruin the drill, and okay, it's still stupid. And if you can sharpen it, then great, it will still serve!
He handed the extension cord out of the house, chose the grindstone with the finest grain. He turned on, attached the drill to the grindstone and pressed it for 5-7 seconds.
Sparks flew around, which means the sharpening process is going in the right direction. Then, in the same way I did the second side.
I looked at the drill, which I sharpened for 15 seconds. By sight, it seemed like I got everything great, I didn't go anywhere from the right angle.
Then, so that it would last longer and drill as many holes as possible, I hardened it. Here, too, everything is simple, in the image and likeness of hardening a bit for a screwdriver.
But since I sharpened the drill and wanted to temper it in the country, I have a gas burner here in the barn.
But he decided to chill not with ordinary cold water, but by working off engine oil. I read somewhere that it is more effective.
He heated the tip of the drill to a red state, using a gas torch, and lowered it into working off.
Everything hissed and seethed, but after a few seconds the hiss and seething stopped, which means the drill is cold.
I went to try to drill metal corners. Excellent, like clockwork! By the way, I hardened the drill too, it was enough for 30 holes. Happy as an elephant!