Carr Lane CL-500-RH-F | 1/2-13" Thread Revolving HandleRevolving Handles Square Design, Threaded Modern square design handle made of phenolic plastic with a threaded steel spindle. Revolving Handles have an internal bearing that allows the handle to remain fixed in your hand, for firm gripping while turning a Hand Wheel or crank. Threaded spindle has a hex socket for easy installation. Application Information Revolving Handles can be used to make custom crank handles. Material Item Meterial Heat Treat