David G.

Thanks

I used the normalizing method, but I will keep in mind to break it too.

I already have a wider knife made from coil spring.

I would like this a little bit skinnier so I can eventually carve spoons or other things.

I did not broke it after quench but I could not file it at all.

I think they are around 30-40 years old, made in Hungary or Romania.

I took the drill bit, untwisted it and I drew it out to a long piece of 3mm thick and 20 mm wide.

By the time I tested one and it is hardening in water.

Most of them are probably the same brand.

Dear community members!

Some days ago I got a bunch of old bent big drill bits from my grandpa.

Are these good to make bushcraft knives?

If u have any other ideas let me know.

Thanks in advance.

Thank you very much for all the  answers.

Thanks for the fast answer.

Yes i have another piece of it. As far as i know drill bits are high speed steel, am i right?

Hello everybody!

I made a leaf touchmark from a 12mm annealed drill bit, my question is how should i harden and temper it? Is it possible to harden it in sunflower oil?

Thanks is advance.