Would it be feasible to just re-work the files to need fewer tools/less often?
It’s a big investment — do you have a compressor and/or vacuum pump? Is running one constantly while the machine is in use an option?
I went for:
c.f.,
but the only way I could justify it was as an extravagant birthday present on the grounds that when doing test cuts, many days it felt like I was doing more wrenching than the machine was cutting.