A few years ago I HAD to buy a new trimmer. I had a manual one, you know turn the handle, and without making some major changes to the trimmer you could not put a drill on the one I had.....ie there was no factory option to do it.
I had to buy a new one because of issues with my hands/wrists/shoulders....whatever. I would be in pure hell after about 5 bits of brass.....I just could not do it. So I started looking.
I know a lot of you are going to say you should have gotten that one that starts with a G. I am not going to try to spell that french sounding name. Issue was IIRC it used something like a die to hold the brass, and they did not have the dies for the odd things I shoot. Yes they had blanks, and you could have them made....seems like too much trouble.
Long and short I got the Hornady one that looks like a drill press. It actually costs about the same money as the other really "good" one, but this one requires very little "hand" action. I can set it and just slowly pull down on the lever. If you don't know what it is here it is.
I actually really like this machine....but shell holders. YOU NEVER HAVE THE ONE YOU NEED. #23 Should be here tomorrow.