I was testing some motors for a vendor so I go the Flux 5B out.
Ran different combos and had it dialed in...then..................... it stopped....
Got to finally get it apart and found this rattle can
http://youtu.be/4shDlKdcXE0
Opened it up to find this...
But where are the teeth???
Oh, there they are.
Here's the failed parts. Surprisingly there was no other damage.