The Swingline SWI74515 is a sleek, portable electric 3-hole punch designed for desktop use at home or in the office. It delivers effortless, automatic punching at the touch of a button, punching through up to 15 sheets of 20 lb. paper at a time with 9/32" holes on 8-1/2" centers — the standard 3-hole format for binders and folders.

This punch operates on either an AC adapter or 6 AA batteries (batteries last up to approximately 3,000 punches), making it convenient for travel as well as everyday desktop use. A reset button reverses the punch pins to quickly clear paper jams, and a hinged chip door allows for easy debris removal. The unit is constructed with a metal body in a silver and black finish. Dimensions are approximately 3.9" x 11.5" x 3". Backed by a limited 1-year warranty.