I came across this hammer idea from a post on Reddit that showed an antique hammer with a square socket as a head and a hammering head attachment. The hammer had "Snap-Off" stamped into the side. After seeing this abomination, I decided to follow that trend and attempt to fully machine a claw hammer with a socket head out of 4140 steel. That may have been a bad idea and I now understand why we still forge hammers instead of machining them to this day since adding the internal taper for the wood handle consisted of hours of hand filing.