Abstract: An apparatus for punching holes in posts in a transportation environment where the offset between the holes in the post and a vehicle running surface of a vehicle is constant over a transportation route. The apparatus has a frame and a hole forming assembly separate from one another, such that the hole forming assembly may be adjusted relative to the frame. The hole forming assembly can be adjusted relative to the frame and can be set at a specific offset between a location where the holes are to be formed in a post and the vehicle running surface. Once the offset is set, the apparatus maintains this offset for every post punched along the transportation route, so that there is a constant offset between the holes punched in the posts and the vehicle running surface.