Support BladeForums! Paid memberships don't see ads! Not sure if this is the right place to ask, but I am going to make another hammer with a hammer. I plan on making a 2lb hammer out of O1 tool steel. I have a 1" diameter rod that I make my drifts out of. I have all the means to heat treat it does anyone have any objections or tidbits over using this steel. This hammer is going to be used for alot of my flat work on my blades and some fine tuning.