Wire Mac $350.00 14" Manual Punch & Binder Binding Pitch: 3:1 3/16" to 9/16" 2:1 3/16" to 1-1/4" Disengageable dies Margin depth control Metal construction One year warranty ... Wire Mac Duo $649.00 14" Double Loop Wire Manual Punch and Binder Punches up to 20 sheets at a time Disengageable dies Closing Capacity of 3:1 3/16" to 9/16" or 2:1 5/8" to 1-1/4" Heavy duty metal construction One year warranty