Sturdy Material: The engraving pen is made of high quality tungsten steel and uses the welded tip, which is not easy to fall off. It can mark specific materials more clearly.Wide Applications: This heavy duty scribe pen will help you easily create clean and precise lines on hardened materials. Whether it's wood, sheet metal, plastic, tile, glass or other materials. Convenient to Use: This tungsten engraving pen is designed as a pen for easy grip and control. The hexagonal shape offers maximum control and comfort, is very easy to use.Easy to carry and store: liner pen with the practical pocket clip, you can keep it as a pen and it does not take up much space . It fits in a pocket like a ballpoint pen. With protective cover: the tracing tool can be used as a pen. Each pen comes with a red protective sleeve that protects the tip of the pen when not in use and will not cause accidental injury.