A tip reinforcing system that is configured to allow a user to adjust a rigidity attribute of the marking tip of a instrument, the tip reinforcing system including: a tip core cavity that is a hollow portion within a marking tip that extends axially through the marking tip, a tip reinforcing core configured to be movable within the tip core cavity in order to change the internal structure of the marking tip, and a core moving mechanism configured to be operated by a user to move the tip reinforcing core relative to the housing body of the instrument in order to adjust the level of exposure of the tip reinforcing core within the marking tip.