I used to work as CNC setup, machinist and programmer for 35 years, have lots of good tools, all of them are in good working conditions, if you start working as CNC setup man,machinist especially milling,those tool are all you need to be pro setup man and machinist, used to pay just for 2 interapid indicators over $500.00.Now ask $500.00 for all set, I think this this is worth every penny