Thanks Bras. This hammer was totally designed and built by a metal fab guy. He's a friend of the friend I bought it from. (Hope that made sense.) I met the designer once, a real smart guy. Anyway, the friend I bought it from is selling his house and is going to travel with his wife for a year or so, he offered to sell it to me and I couldn't pass up the deal considering how well it's built. I especially like the "I" beam construction, really adds rigidity, so it doesn't wobble during operation. The dies line up perfectly, and the "inline" operation, in my opinion is the way to go.