Same thing - more ergo - equally pricey and Lamborghini styled for a shop vac - http://www.festoolusa.com/pages.aspx?docid=793 (Seriously wish that some tool manufacturer catered to us in this way like Festool does for cab guys.)
I just bought the bosch 1640vs fine cut. It works good for cutting moldings in tight spots. Especially when installing new flooring where you need a tight close cut under the door jambs. The Fein tool looks much more versatile for electrical work. Nice videos I am going to go check out the price now ouch .
It is a an absolute dream to work with (I borrow one if available from carpenters on-site when ever possible - very popular in finish carpentry these days...) - it sort of just'melts'into wood and other materials with a pretty thin 16th" kerf. And the diamond blade (little thicker) is far superior to a grinder in terms of dust on tile etc. I have been wanting to get one - but the blade cost is hard to swallow. They also make a more industrial powered "Super-Cut" at nearly $1K! (50% of that cost is the blades that come with the kit.) Big deal it cuts faster (longer stroke not suitable to some finished work anyway...) - the "Multi-master" tool doesn't cut fast per say, but fast enough using simular equally expensive blades....
And FYI - I know some guys who have boot-legged pieces of japanese saws to old worn Fein wood blades with a spot weld or two and they seem to work just fine.... And be wary of the on going joke of borrowing that fine tool of yours.....
