The 1100 is a control knob manufactured from phenolic material with a black finish and spun silver inlay accent. It features an M3 x 0.5 tapped set screw hole with full thread required in the body, accommodating an M3 x 0.5 x 4 mm long slotted set screw made of H.H. brass. The knob has a molded counterbore of 0.47 inches and a 0.25-inch bushing, with key dimensional specifications including a 0.78-inch outer diameter, 0.66-inch height, and 0.09-inch radius. This knob is designed for use in equipment requiring reliable shaft coupling and precise control interface, commonly found in industrial instrumentation, audio equipment, and mechanical control systems where durability and aesthetic appeal are important.