ORIGINAL: cfircav8r
The conversion ones are not nearly as precise as even the cheap presses, and a cheap 5 speed table top press from Harbor Freight is only $69.99 and it works great. The only issue I have is on the high speed setting you have to help it start, but once it gets going it does'nt bog down.
Agreed, also if it is not designed for your particular drill, forget about it. keep an eye on craiglist.