Lee Zip Trim turned around
I've been looking for a faster and more comfortable way to trim my brass than using my RCBS ProTrimmer.
The concept of the Lee Zip Trimmer has always appealed to me. But I didn't like the fact, that you have to stop for every case in order to mount it in the shellholder.
I figured that it would be much faster to mount the trimmer tool in the power drill instead of the case. So I ordered a trimmer and length gauges for some of the calibers I reload and had my gunsmith turn the handle of the trimmer tool down to 10mm. Now this fits into my drill chuck. I hold the cases by hand during trimming. It works like a breeze!!!

I took my lee trimmer apart and chuck the cases in the case holder. I use mine to polish cases.
I like your trimmer idea!