Now that I have an AR I was needing to process larger amounts of brass to reload. Lee trimmers work but slow, clumsy, to many steps. I searched around and ran across this http://www.littlecrowgunworks.com/trimmers.html. Picked one up and I just trimmed to length 557 pieces of brass in 2 hours. That included quite a few random case length checks to make sure it was working well. Cases are +- .001"!! Clean cut that doesn't require any deburring or chamfering. The trimmer locks in a drill chuck and you hold the case in your fingers. Even with my carpal tunnel/arthritis it was no problem to run through that much brass.
Only downside is it flings brass shavings everywhere. I am going to make a hood that clamps over the drill body to make the shavings drop straight down into the brass recycle bucket.
trimmed brass, hard to get good focus on it...