My guess is you are a one man operation, so you will take much better care of your tools and watch them more closely than my labor will so maybe the 1% I use would be too high for you, or maybe with the volume you do 1% may not even touch what you should have set aside for this kind of stuff. It’s really hard to say.
I have a 40 year old wire reeling machine (Reel-O-Matic), and Rigid-535 threaders that are almost 20 years old, but I cant make a drill motor or hammer drill last more than 4 years. My cordless drills have about a 1-year life, and my band saws seem to last about 5 years and usually get stolen before they are done. None of my hydraulic benders seem to last more than 5 years without major work, but my 555s are pushing 15+ years now.
