[Milsurplus] quality Dremel attachments ?

[Mike Durff]

While working on my mil-surplus equipment, I occasionally need to do some grinding of rivets to remove old caps, etc...
All the attachments for Dremel tools now seem to be of very low quality, even the Dremel brand. Just yesterday I was grinding off an aluminum rivet, which should have been a piece of cake, and the head spun off the shaft. Looking at the shaft, it appears that it is knurled or burred and the tool head is just friction fit. Seems like I remember these grinding heads were epoxied on in the past... 
Anyway, I'm looking for a source for quality Dremel attachments.
TNX, Mike