The drawbar is 1/4”-20 threaded rod covered with LLDPE tubing that has superb stress-crack resistance and remains flexible and durable in a temperature range between –103°F to 120°F, which means it will withstand any shop environment. The tubing is in place to protect the inside of the hollow lathe headstock spindle. Both the rod and tubing can be cut to custom lengths for any lathe with a minimum of 1/2” diameter through bore.
The cone helps center the rod in the spindle to reduce rotational whipping. The two wing knobs are used for locking together to screw the threaded rod in and out of the Elio-DR threads.