Swingline Classiccut Ingento Trimmer Trimmer features self-sharpening hardened coated blades made of highest carbon steel; a solid maple hardwood; and clear lacquer finish. The dovetail joint eliminates warping. An alignment grid allows accurate squaring. Design also offers cast metal handle arm; safety guard rail; cast metal handle arm with lock; and cast iron cam and bearing housing for a rigid pivot point. Trimmer cuts up to 15 sheets.