I have a Forester Trimmer and power adapter that I am trying to hook up.  I bought a variable speed drill to attach to the power adapter and am having issues trimming cases... basically the cases are not being trimmed square.  I believe it's because my drill is not level with the trimmer.  How do you guys have this setup?  any pics?

I have mine "set up" in a trunk in the garage. It was slow and, like you, I could never get it squared up. I even set it up on a drill press, still no good.




Their "Original" model did a better job, but it was still slow, and for 9mm you have to buy a seperate base. It's also in the garage.


Wilson makes the best lathe trimmer I've tried. I use it for .38/.357 and .32-20. Don't trim my rimless cases.


It's in the Sinclair catalog, but I'll be damned if I can find it online. Great products, terrible web site. Order their catalog. You can add a micrometer accessory that makes repeatability very easy.

I use the one that is in the middle picture.  With the adapter attached and the base secured to the table, there is no problems with the drill being off to the right.  Don't let the drill hang while you are trimming and make sure that when you seat the brass in the holder that is square there before trimming.

How I do it is place the piece of brass in the holder and turn the handle to grip it just enough to hold it in place, then run the cutter up to the mouth.  Once the pilot is in the case mouth and the cutter bit has pushed the case back every so slightly and squared everything up, then I tighten the holder and cut away.

Who trims 9mm handgun brass?