Features 1、These etching pens are used to mark hard materials, including hardened steel, stainless steel, ceramics and glass. 2、These hard tungsten carbide blades of sharpness can accurately scribe lines and text on almost any metal. 3、Made of high quality material, these aluminum marking pens are durable with long service life. 4、These etching pens possess good contact performance, ensuring stable working. 5、These engraving pens are designed with knurled handle, making them anti‑slip and easy to hold. Specification Item Type: Aluminum Etching Pens Shell Material: Aluminum Alloy Blade: Tungsten Carbide Handle Thickness: Approx. 6.35mm / 0.3in, Length: Approx. 150mm / 5.9in Uses: Used for Scribing Hard And Brittle Materials Such as Glass and Ceramic Tiles. Quantity: 10pcs Package List 10 x Aluminum Etching Pens