Based on a field without line services (and refusing to move my Rockwell unassisted after slipping and falling while hand-towing it), I’ve been learning about the four broad-brush categories of hangar tugs. This includes more traditional aircraft-specific engine-powered tugs, electric-powered under-nosewheel/tailwheel tugs and handheld tow bars that use the kinetic energy of a spinning cordless drill.
Herewith are some top picks for drill-powered tow bars, with some tips for choosing one.