Revolving Handles – These machine handles are available in a variety of designs (Square-Threaded, Rounded-Threaded, Rounded-Shoulder Screw, Rounded-Press Fit) and foldable revolving handles and revolving ball handles are also offered in this section of the catalog. Revolving Machine Handles produced & sold by ibizkart feature an internal bearing that allows the handle to remain fixed in your hand, for firm gripping while turning a Hand Wheel or crank. Finishes include stainless steel, steel, thermoplastic and phenolic plastic. These machine handles are available in 5 different sizes, which vary depending on model.