Surely you know that in order to drill a hole in hardened steel, special carbide drills are needed, which are not cheap. At the same time, they still have to be sharpened during operation. To save money, we suggest you make drills that can drill a hole in hardened steel products of any thickness in just a couple of minutes.
Content:

Materials for work
In order to drill a hole in a hardened steel product, you will need:
- tungsten-cobalt carbide rods VK8;
- drill;
- hand vise;
- diamond grinding machine;
- machine oil.

No. 1. We make a drill from a rod
For the manufacture of a homemade drill, we use hard-alloy tungsten-cobalt rods, which many call “pobedite”.
Step 1. We clamp the VK8 rod in a hand vise

Step 2. Sharpen the drill
On a diamond grinder, we make bevels on the edge of the carbide rod.

It turned out here is such a preparation.

We sharpen the cutting edges, forming a drill.

Final result.


No. 2. We carry out tests
Let's try the drills made on various types of hardened steel.
Test 1. Drilling hardened steel
We drip a little machine oil on the metal.

We drill a hole by positioning the drill with the drill at the desired angle.

When we feel that the drill is dull, we change it to a new one and continue drilling.

In half a minute we get the finished result.

Test 2
Let's complicate the experiment: let's take a harder, but brittle steel. Don't forget to drop some machine oil first!

We start drilling.

This time the drill dulled much faster. We change the drill, drip a little oil into the recess and continue drilling. Change drills as needed.

The result of our efforts, which took only 2 minutes.

https://youtu.be/8ml72qEtEyA
Video: How to drill hardened steel. Drilling a saw from a quick cutter
How to drill hardened steel. Drilling a saw from a quick cutter
How to drill hardened steel?: in just 2 minutes we make a hole with a homemade drill
Chatter about nothing! After all, everyone, at home, has a bucket of victorious rods.
Right!! And a sharpener with a diamond wheel is screwed on each table ... only it’s just a drill with a win, which is sold in all stores, I didn’t think to buy ...
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