Stack paper cutters use a straight blade that impacts thick stacks of paper at the same time from one edge to the other, which is what sets it apart from the guillotine cutters. Stack cutters are so named because they can cut through thick stacks of paper, some even as many as 700 sheets of 20 lb. bond paper at a time. They all have a firm clamp to hold your stack in place, ensuring a precise cut throughout every sheet. You can buy paper stack cutters online that are perfect for print shops and production plants, as well as offices of many sizes.