Adjustable Edge Guide: Allows for easy alignment of paper or oversized covers. Adjustable Selector Pins: Pins can be easily adjusted for quick and effortless punching for a variety of paper sizes. Dual Punching Controls: A push button or hands-free foot pedal allows you to choose your method for efficient punching. Exclusive Auto-reverse Jam Stopper: Automatically reverses motor direction to protect the system, preventing downtime due to jams. Vertical Open-Throat Punching Design: Allows for easy alignment of various sheet sizes in the punching throat, eliminating punching skew. All Metal Construction: All metal construction, including die cast sides, provides longer life and greater durability.