[Multifunctional Engraving Pen] It is a sturdy multifunctional engraving tool, whether you are working on wood, metal, plastic, ceramics or glass, this precision tool will provide you with precise marking capabilities. Use this engraving machine to label tools, identify all equipment, mark keys, cases and flashlights. [Pen-shaped design] Adopting a pen-shaped design, it is easier to use, firmer and has better grip. The hexagonal body design makes it as simple as a pen, and even more delicate than a pen. Because the smooth surface makes it look natural, you'll love sculpting. [High-quality alloy letter pens] The set contains four alloy letter pens, with durable tungsten carbide tips and composite shells, so that hard materials such as hardened steel, steel stainless steel, ceramics and glass can be easily processed. The tungsten carbide tip is more practical and durable than other engraving methods. [Easy to Use] It has a high strength tungsten carbide tip that can be used to write on glass, ceramics and plastics. Comes with a red protective sleeve to prevent holes in your favorite work shirt. [Easy to carry] The handy and rotating pocket clip allows you to always use the engraving and engraving tool conveniently and store it like a ballpoint pen without taking up too much space. This can be clipped into the pocket like a ballpoint pen.