Heavy-duty trimmer with rotary blade features a large, sturdy, metal base and is ideal for all paper trimming. It's also perfect for everyday or specialty jobs including cutting oversize documents and high-volume projects. High-capacity rotary blade with an 18" cutting length cuts of up to 30 sheets at once. SmartCut Commercial Heavy-Duty Rotary Trimmer conceals blade edges for safer use. Manual clamp holds papers in place for the most accurate trimming. Alignment grid and dual scale ruler allow precise measuring. Blade and cutting mat can be replaced for lasting use.