An interchangeable tip comprising: a stylet; a blade module including: an enclosure that electrically connects, signally connects, or both the interchangeable tip to a power source, a signal source, or both; and blade circuitry having: one or more control buttons, one or more switches, or both for controlling operation one or more functions of the interchangeable tip. Included is a host with a processor and memory for receiving data from a network. At least a portion of the tubular liner is extruded off of the mandrel into contact with the interior surface of the outer casing.