I hate it when there are good tools out there to make life easier, such as shredder vac/blowers, but then because of their cheap construction youre always faced with repairs. For years Ive used the little Stihl vac/blowers for vacuuming up leaves in ground cover, cigarette butts, Styrofoam peanuts, and so forth. Works great, but then all it takes is sucking up a stick or piece of bark and then the cheap plastic impeller is shot, or even the case surrounding the impeller gets cracked. Ticks me off to no end. So, someone out there please tell me that there is a shredder vac/blower out there that is commercial grade! Is there one that actually uses a metal impeller instead of plastic?