Remarkably versatile, these 3165 Series Koh-I-Noor Rapidograph refillable technical pens handle like a pencil, moving in all directions without snagging or digging into the drawing surface. Each pen is identified by a standard point size or by its line width expressed in millimeters. The pens are made of impact and chemical-resistant components for universal use with drawing and specialty inks. They feature long streamlined holders for good balance and self-polishing stainless steel points. For use on paper and drafting cloth. Each cap has a pocket clip and an air-tight double-seal liner. These pens are compatible with Rapidograph Universal Technical Inks.
