Has anybody tried either the Torque Jack or the other brand where you use a codless drill to raise/lower a square trailer jack ? I was just talking to the inventor of the Torque Jack, said it's basically rated to lift app.800 lbs., has a 24 to 1 gearing.
The original torque jack was a light duty unit meant for small skid trailers. We have since come out with a 6 bearing equipped unit capable of lifting over 11k of tongue weight... it's pretty impressive.