Reply by crank49

A good quality file will last a rather long time.
I can’t speak for the ones specefically offered by Lie Nielsen or Lee Valley, but in my jewelry work I can use, and get good results for many months of daily use from Swiss made Grobett files. And the cut is smoother and the teeth don’t clog the way cheaper files do from day one. There is just no comparison.

-- Michael :-{| Diapers and politicians both need to be changed often; and for the same reason.