Quick question - I've been looking at all the articulated hollowing systems out there (including the Monster which seems to be a rockstar) and I cannot tell what the materials are that are used in the arms and boring bars. Looks like stainless steel boring arms and aluminum articulating portions. Am I correct? Also, the Monster system has multiple holes in the first arm.... are those there you so you can change the pivot locations?
Full Disclosure - I am contemplating building my own system and the material question has my stumped. If it is all stainless steel - I ain't looking to start machining that in my garage.
Thanks all
Jon