It's used for V8 style engines. Everything from 1976 and on. 450, 380, 500, 6.9 and 560 that I've seen. I know some newer diesels have hydraulic lifters but all the ones I've worked on are mechanical.
However, I was talking about MB tools in general; how expensive they can be and how little you might end up using them once you have them, while noting that some are absolutely necessary. Why would a diesel expert make such an assumption about hydraulic lifter base setting tools and I thought you don't answer unsigned posts? lol