Akiles 14" WireMac-21 Manual Punching & Binding Machine for 2:1 pitch Double Loop Duowire Bindings & Spines from 3/16" to 1-1/4" diameter.Akiles WireMac renders efficiency and productivity. Its full range of functions and state of the art mechanisms were especially designed with one goal in mind: to fully meet the needs of the wire binding industry!Wire Pitch: 2:1 ( 21 loop ). Hole Punch: Rectangular (0.157" x 0.217"). Closing Capacity: From 3/16" up to 1-1/4". Single Punching Capacity: Up to 20 sheets of 20lbs bond paper .Closer Selector: Included .Punching Length: 14" (27 dies) .Disengaging Dies: All 27 dies. Closing Mechanism: Vertical .Master Selector: Included .Metal Wire Snatch: Included .Wire Diameter Scale: Included .Side Margins Control: Included .Punching Margin Control: Included.