1. Product Name: Tempered glass cutter, needle pen, diamond needle glass knife, lettering pen, crossed pen.
2. Material: high-quality carbide tungsten steel.
3. Applicable products: for stainless steel, aluminum, steel, iron, nonferrous metals, hard plastic, crystal, acrylic, all kinds of toys and other materials on the carving, such as writing, drawing, marking, etc., Liquid crystal glass and other thin glass. Easy to use, easy to operate. Suitable for a variety of products crossed, lettering.