I am looking for how to make a pickaxe but I do not know how to make join on "z" the pickaxe his sheet there is only one shield, evil, sword and hammer

Pickaxe is an "Axe" and located in the axe head secetion

2 ingots heated enables small axe head

3 ingots heated enables large - which houses only the main large axe head type, and pick axe head

Both Large axe head and Pickaxe head require a 2h grip to sell to customers.

Your Personal Pickaxe can utilize 1h grip, though.

Your Personal Hatchet/1h axe can utilize 2h grip as well

Combining either of these this way will not be saleable. It is /only/ your personal ones that can utilize it.

Hammer head also houses Mace/Morning star heads as well. - under the 2 ingot small head.

You can sell any of them as a one hand hammer, Not sure about Personal use.