The SFP-II is a heavy duty 3-hole punch capable of punching 300 sheets of 20 lb. bond at one time. Comes standard with 5/16” punch bits but can take punches from 1/8″ to 3/8″. Three hole punching is at 4 1/4″ centers. As an option 4 holes can be punched with 80 mm centers.
Back gauge is adjustable.