The RENZ SRW 360 Comfort wire binding machine is an entry level electric punch and manual wire closer. The RENZ SRW 360 Comfort punches 3:1" pitch square holes. With 42 selectable punching pins and adjustable punch margin the SRW 360 Comfort offers complete flexibility when punching a range of document sizes. For documents over 120 pages the RENZ ECO Comfort 2:1" punch will be required.