Dual speed boat trailer winches make light work of heavy loads. One fast speed for quick pull in, a second low speed for increased mechanical advantage. 

The shift lock design allows changing gears without moving the crank handle from shaft to shaft. Just lift the shift lock and slide the shaft into the desired gear position. Shift lock holds the shaft in gear. Neutral, free-wheel position, allows quick line pay out without spinning the handle. The ratchet pawl also has a convenient neutral position.