PREMIUM MATERIAL- The metal scribe tool consists of a tungsten carbide tip and an aluminum shell, the structure is hard, not easy to break or deform. Disposable briquetting tungsten carbide blades are more durable than others, and are not easy to drop, durable for long time usePRODUCT INFORMATION- This pack includes 3 tungsten carbide tip scriber, which is enough for your daily usePRACTICAL DESIGN- The etching engraving pen is small and comes with a handy pocket clip for easy storage and can be clipped to your pocket for on-the-go convenience. Etching engraving pens are small and easy to store, and can fit in your tool bag without taking up too much space, convenient to carryEASY TO USE- The surface provides maximum control and comfort, just hold it like a pen. The etching tool tip has a protective hat to prevent accidental stab wounds. This glass cutter scriber is easier and tighter holding and better control when using itWIDELY USED- Perfect for making sharp accurate lines on hardened materials like hardened steel or stainless steel. Our metal cutting lettering pen is a multifunctional high-performance etching tool working for metal, plastic, ceramic or glass, gives you accurate hairline marking ability