The OHMITE 5104AE handwheel with pointer is a crucial component for controlling rheostats and tap switches. This robust hardware knob, with a diameter of 3 1/4 inches, is specifically designed for models P, N, R, and U, ensuring precise and reliable operation. The pointer provides clear visual feedback during adjustment, enhancing user control and accuracy. These handwheels are fastened to shafts using slotted set screws, offering a secure and stable connection. OHMITE's hardware components are known for their durability and performance in industrial applications.