19X15.2mm Glossy Black Aluminum Encoder Switch Rotary Encoder Control Knobs

19X15.2mm Glossy Black Aluminum Encoder Switch Rotary Encoder Control Knobs. the knob was made from Solid aluminum rod, then made by precision machining, colors by anodized/powder coated or galvanization. All knob were made with differeht shaft holes for your choose,such as 6mm 18 teeth shaft, 6mm D shaft,6.35mm D shaft, 6mm round shaft, 1'4" round shaft or other shaft holes. Sizes of knobs are flexible adjustment, no need tooling fee for metal part,color can be make according to your sample or color number. We can make your logo or other text on knobs by laser printing, UV printing or screen printing. Each knob can be make with set screw on side or without set screw but with plastic insert into the knob, and push fit on knob. each knob can be make with different type of indicator or without indicaotr.