Wahl Super Taper clippers, dad bought one in '57 and cut our hair. Brother and I got "flat-top" cuts and Butch Wax... that clipper died on me just a couple years ago, got an updated one. Same design, it works great for me. Last barber chair I sat in was while in the Air Force. Didn't cut my hair for a long time, had a ponytail for years. Went from bein' "hypocritically bald" to admitting my Hippocratic baldness some time in the mid-nineties. Got out the old Wahl clippers, cut it down to as short as possible and haven't looked back.
I jokingly tell folks my barber's from New Zealand. Only knows the one style. Some get it, some don't.