The OHMITE 5106AE handwheel with pointer is a crucial component for precise control in rheostat and tap switch systems. This 3 1/4 inch diameter handwheel is designed for compatibility with a wide range of Ohmite models, including P, N, R, U, H, J, G, K, and L. The pointer allows for accurate visual feedback during operation, while the slotted set screw ensures secure attachment to the shaft. These handwheels are commonly used in industrial applications requiring adjustable resistance, such as motor speed control, lighting dimming, and laboratory equipment.