Most professional blacksmith forging hammers require finishing to make them fit your hand and your work. Sharp edges will need to be radiused. This is called "Dressing" the custom forged hammers.  

Furthermore, many European blacksmiths would find it insulting for a hammer manufacturer to assume they know the best radius for the master blacksmith. For more info on this subject and to learn about specialty hammer types, please read the book by Mark Aspery, "The Skills of a Blacksmith", Volume 1, Chapter 3.

Multi-purpose forging hammer which is designed specifically for forging.

These blacksmithing hammers are not meant to drive punches or chisels.

Always take special care of your anvil and forging hammer when working with tools steels and alloys.  

For the sake of your tools and your body always know what it is before you strike it.

Many blacksmiths use a cheap steel forging hammer and cutting plate on the anvil when punching and chiseling.