The Lyman - The Universal® Power Trimmer doesn't look like a cheap alternative, but I can see why you'd choose this if you have a bucket of brass to get through.
dromia wrote:If you get one that will work then they are fine, but Lee lack of quality control is their big weakness.
For starters the Lee case length gauge is very good, consistent and is one of their tools that there is little to go wrong with, add a drill chuck fitting and away you go. Its only limitation is you can only trim to the fixed calibre length however for the vast majority of situations it is absolutely fine. Cheaper that the above unit and less likely to have something wrong with it.
I use a Forster or Lyman trimmers, the Forster is when absolute accuracy is need and the motorised Lyman is for volume. I used the Lee case length gauge before I got the Lyman but I go motorised when I can now because of arthritic hands.
If you have a good set of calipers then the micormeter adjust isn't needed