This is a great tool for airplane modelers. Usually when building the plane for one reason or another it is easy to lose the panel lines. The scribing tool is easy to use to add those lines that were lost or add new panel lines throughout the plane. I find it best to use a straight edge of some kind so I don't have squiggly panel lines.

Does the job. The blade stayed sharp through many models.

Great for scribing or rescribing panel lines and other surface detail. Many scribers just push the plastic aside and you end up with a ridge on both sides that needs sanding to be flush. This is different. It actually removes material from the bottom and sides of the groove. Rarely needs sanding after use. Very sharp. Game changer. Good price too.