Pen for writing on compact disk, has cutting section projecting from closed end of cap by distance smaller than distance by which projected portion is projected beyond closed end of cap

摘要

The pen has a cap (12) including a wall portion that is extended between a closed end and an open end. A projected portion (13) is axially extended from the wall portion to project beyond the closed end by a preset distance. A cutting section including a cutting edge is projected from the closed end of the cap by distance smaller than distance by which the projected portion is projected beyond the closed end.