Myself, I have a Timberline and use it on a log with a stump vise. It's fine on 325 or 404 but it sucks on Pico lo pro loops. I still hand file the pico loops. So long as you don't turn the cutter backwards, it's fine. Turn it backwards and it's instant junk, it's tungsten carbide and very brittle. It's a handy too but it's not handy for lo pro at all.