I thought I would try making some blacksmith hammers as part of an SCA A&S challenge. The first attempt was a total failure. I had found some tool steel block cut-offs at a local Metal Supplier, which I thought would work well. Nope! The tool steel alloy was way too tough for forging. I found a 1-1/4″ drive shaft in my metal pile that ended up working very well.
An old driveshaft worked well for the hammerheads 
Starting the forge 
Heating the heads up needed a lot of head. I made a makeshift oven for the forge 
I made up some special tongs to get the hammer heads in and out of the forge 
Punching the hole through the head 
Finally worked a hole through 
Upsetting the hammerhead to make it thicker 
Lots of shaping 
Square-face hammerhead 
Round-face hammerhead 
It was hard to getthe holes centered 
Cooling the heads after hardening the faces 
Making handles from an ash log 
Finished hammers