A520 Pro / Swingline 9618 series is for high-performance. If you're looking for a professional trimmer that can handle up to 30 sheets at a time, an A500 Pro series Swingline trimmer is for you. They're perfect for all of your high-volume projects. Added features Stainless-steel rotary blade cuts in both directions Manual clamp locks papers into place Transparent cutting guide Alignment grid and ruler for accuracy 30 Sheet cutting capacity. GBC A520 Pro -18" - GBC Swingline Trimmer 9618. To order by product code call 1-866-455-9900.