Just keep in mind what you really need to your work. If step you into most machine shops looks great all tools have DRO'S most are not working.?In the shop I had only the Bridgeport had DRO'S and air guns where band. They work for over 30 years.?When work shop I made portable set. It was only handy for some type of work like snap rings in lathes and milling holes.?Dave