The holes are 2 3/4 inches apart.
According to the manufacturer, the NSN1632563 - 7520001632563 Adjustable Medium-Duty Three-Hole Punch punches 1/4" holes.
Staplers and paper punches are essential desk supplies in every home and office. On Time Supplies carries office staplers in a range of styles and capacities, including electric and battery operated staplers, as well as stapler accessories such as staples and staple removers. We also offer an nice selection of hole punches, including scrapbooking punches. You save money when you order punches, staplers and staples online at On Time Supplies, thanks to the discounts we order when you buy in bulk. If you need more information on the office desk supplies featured at On Time Supplies, or information on GSA pricing, call us toll free at 1-866-501-6055. We're happy to answer any supply questions.