1Made of extra great alloy steel, high hardness, wear, break & corrosion resistant, with long lifespan. 2Designed with a sharper cutting edge that provides a cleaner cut, help you get the work done efficiently. 3Cross double chuck, more tight blade installation. Use more safe and secure. 4Easy to Control the Tool: Easily control the engraving / drawing path. Makes smooth and clear strokes. Works for metal, glass, ceramic, plastic, wood, etc. 5Small & Comfortable Handgrip: Just hold it like holding a pen, lightweight & compact design, letting you perform intricate work smoothly and effortlessly.