A handwheel enables machine operators to provide manual adjustment to equipment, as needed. Zoro offers several types, including knurling wheels, spoked wheels, solid wheels, heavy duty wheels and light duty wheels. Handles for these wheels can be fixed, fold-away, or revolving. Some have no handles at all. Other variations between products include material, diameter, thread, size, screw length and other dimensions. For more things to turn and twist, see our levers and handles and knobs.