Dremel sells collet sets so different sized bits will work. I know how was able to use a Dremel for both bits on my 19 build.
Two things about that:
You should use the Dremel collets because you can see the bite marks from the 3 points from the keyless chuck on some of your pins. I had that problem too.
Also, to reduce the wobble, cut the 100mm brass rod down to 3rds and push the stock as far into the dremel as possible. 33mm should give you enough material to work with and have enough stock in the dremel to stabilize it.
Personally I like to play with the baggie of pins to figure out what I can do before I commit to the brass stock.
You just need to swap out to a different collet size.
Mine came with few different sizes. Just don't get the speed chuck, it leaves dents in the brass.
There definitely are! However the "stock" Dremel collet is 1/8th, so you'd need to get the collet set (or a 3/32" if you can get it as a single).
Routers do have quick change collets:
http://www.amazon.com/Dremel-4485-Quick-Change-Collet/dp/B0000302Z6
So...you're telling me the people saying my CNC "Router" isn't a "Mill" are just mad because they paid more?