I suppose this is a joke with a question about an arbor press.

For good stamping, you need to consider 2 components:

1 - Thickness and elasticity of the metal. And also, what kind of metal it is.

2 - Size and weight of the hammer, which is expressed in the force applied to the stamp when striking.

Each metal has corresponding characteristics (hardness, elasticity, pliability to processing, etc.) and, accordingly, it is necessary to select a sufficient level of striking force.

Based on my experience, I can say that for high-quality engraving on metal, it is enough to make 1 accurate and good strike (according to the level of applied force). But in order to develop the correct technique, you should first practice with a specific metal using different degrees of pressure when striking. Because in each specific case (depending on the type of metal), the striking force will have to vary.

Practice and with experience everything will work out.