★This is a precision tungsten carbide needle for plastic modeling use, offering an exacting finish and superb durability. ★Use it to engrave new details or emphasize existing ones. ★Performs excellently in straight lines and curves, and can be used as one would a scriber. ★Shank diameter: 2mm. Length: 25mm. ★Storage case included. ★Recommended for use with Item 74139 Engraving Blade Holder.