Hand-cranking the jack affixed to a livestock- or materials-hauling trailer for hitching it to the tow vehicle is a slow, tedious task-and likely daunting for those with shoulder, arm, hand, and/or back issues. One tested (and inexpensive) solution is to replace the crank handle with a cordless drill, which can speed up the task significantly. Making that substitution possible is a Drill-Powered Trailer Jack Adapter, which allows the drill to insert into where the crank was removed. It can be homemade by drilling a hole in a standard socket or can be purchased. The commercial ones, which include clevis pin and R-clip, vary in size at the drill-insert end and are 1-inch at the jack drive-shaft end. (Note: Works best on empty trailers with low speed, high-torque drills, but not an impact drill.)