Helped a friend move his household stuff. Was shoving stuff into my Jeep, when he walks up with a heavy and big old drill. A 5/8? See these once in awhile. Nope, a 3/4, probably 1940s. Told me to hang onto it til he needs it again. Can't imagine running this thing single handedly. these things are noted for spinning the user around in circles. Anybody else have a 3/4 in. drill>?