Yeah, totally agreeing with the above and ABSOLUTELY pushing the
Flex-shaft! That addition is THE SHIZ! I can't believe I went so long without one.
The
EZ Lock Cut-off Wheels are pretty sweet AND much safer as Hez mentioned. I've had the break-off happen to me, as well (ANOTHER reason to wear safety glasses!). My only complaint is that they are so big in diameter. Couldn't tell you how many times I would have LOVED to have had a smaller diameter version in the box...
I've also found the following to be quite useful:
Grinding Bits - I've actually had better luck with shaping plastic with these, than the sanding drums.
High Speed Cutter - Recently (Yesterday) I found this guy worked much better when it came to cutting through a thick PVC coupler, than the discs. It actually gets going so fast, that the cut part starts melting and goos out, but is easly broken off.
Oh, and sidenote, the sanding drums are great for callous removal (Make sure you do a wetsand, though, cuz it burns like a MOTHER, for obvious reasons)...