Of course Anne, that depends a lot on the metal you are cutting and how deep you are going.
A round graver usually requires more pressure than a diamond/square graver because of the larger frontal area in the metal.
Only time and practice will give you the answer for push or hammer engraving
If...
Hello Anne, and welcome to the Cafe forum and engraving.
from the sound of things your problem is the lift or belly angle of your gravers.
The front angle should be about 45-50 degrees.
And the bottom or belly should have a small and short relief cut of about 15 degrees.
On your #41 HS round...
Yes Roger, that, function over form (and ton of dollars) is why I shoot my ducks with an old Winchester Model 12 instead of a Phil Coggan/Purdey masterpiece. :)
Pleurotus, Unlike tool steel drills the shanks of most M-2 high speed drills are hardened.
That is where you had a problem by trying to heat treat it. Use it as is, test with a file.
I make most of my gravers from M-2 drills by shaping and sharpening the shank.
And I cut hard gun steel with them.
A small triangular file will make a starting graver.
And drive it with a piece of hardwood or a small rawhide mallet to soften the blows.
You can make a chasing hammer out of hex head or large carriage bolt.
Your first cut didn't look too bad, good start. Keep going.
Best of luck on your...
Many good engraver have a favorite handpiece and use it for a majority of their work.
The only real way for you to know what suits you is to have it in your hand.
Try to get to a show where the tools are being demonstrated and try a couple.
But quite frankly ,when you get use to them any one...
Daniel 29.
If you would include your general location in your profile it would make it easier to give you advise appropriate to your area. After rereading your original post I see you are in Germany.
But this will not be available when answering your future threads.
I have used a SilentAire 400 watt,2.15 C.U.F.M,, Model 50-15A for the last 25 years.
It is an oil compressor, quieter than a refrigerator and about a 5 gallon tank.
It has a viable oil filter and a top feed air bleeder which is hooked up to a drain bottle.
I bleed the tank at the end of each...