Show off your machining skills with this black t-shirt featuring a CNC machine graphic! The bold white text "NEVER UNDERESTIMATE AN OLD MAN WITH A CNC MACHINE" is sure to get a laugh. Makes a perfect gift for machinists, engineers, and hobbyists who love CNC technology. This comfortable and stylish tee is great for wearing to work, around the shop, or just hanging out. The crossed calipers give a nice design. Get yours today and let everyone know you're a force to be reckoned with!