Ok thanks, I was going to put the ram about third of the way up the arm a nice traditionally cerved so the tips pretty verticle, steel mounts, either mild or hardox, and a hard steel tip, hopefully something harder than hardox, so it doesn't blunten when it's used against that, but I don't know what is that hard that won't instantly brake off, so any suggestions for that would be nice, like what are the blades on spinning blades made from? And thanks for every ones help so far!