Mark your territory on any surface that matters. This retractable diamond-tipped scribe delivers permanent etching on steel, glass, ceramic and beyond. Great for labeling your luthier tools, guitar repair supplies and custom builds. Twist the sleek black barrel to reveal a hardened steel stylus with a genuine diamond tip, then retract it just as easily when you're done. Unlike standard pens, this tool won't skip or fade on Damascus steel or other hardened materials. USA-made diamond insert paired with domestic assembly ensures durability where it counts. The integrated pocket clip keeps your workspace organized and your gear protected.