Lee does not make a case trimmer for the .25 Auto. I know, I've searched their catalog, gun store shelves and website.
I know of no one who does.
However, when I've had to reload for my .25 Auto, I just use a small, fine-toothed file and lightly pass it over the case mouths. I set my micrometer to .610 inch and check it with that.
Since the .25 ACP is actually a semi-rimless round, and does not headspace on the case mouth, case length isn't as critical as with rounds that do. This is not to say you can be freewheeling about trimming .25 cases, but if you go one or two light strokes of the file too far, it won't hurt anything.
In my experience, the .25 Auto hardly stretches over multiple firings. Usually, it takes just one pass to true up those that stretch. Oddly enough, the cases in my .25 tend to have mouths that are slightly unevenly stretched.
That is to say, one side may be .610 inch and the opposite side .615 inch.
Passing a file is tedious, to be sure, but I haven't found any other way to do it.
Just remember to check case length AFTER sizing. Checking case length, and trimming to proper length, can be easily done in front the TV.
Sit on the couch, have your untrimmed cases on the left and a container for trimmed cases on the right. Then just work left to right. This will keep them sufficiently separated.
Reloading the .25 Auto is working at the subatomic level, it sometimes seems, but it's justified by the expense of ammunition. Also, some .25 Autos can be amazingly accurate out to 10 yards or so.
I used to carry mine while deer and elk hunting in Idaho, loaded with a single ball of No. 3 buckshot in each case. Bullseye or Unique in very small amounts work well. I figured I could knock off a grouse or rabbit at close range with the little pistol, without spooking game. Alas, I never got the opportunity.