[Leathercraft/skill, technique] Have you been holding the Griffe in the wrong posture?

* English subtitles have been uploaded.
With a little care in the grip-holding position, you can reduce errors in the holes you punch.
You all agree that if you hold the griffe so that it won't shake even if you hammer it, you can punch the hole the way you want, right?
#diy #leathercraft