Rolling Trimmers are the new generation of paper cutters. Designed for safety and accuracy, the cutting blades are encased in a plastic housing that virtually eliminates the chance of personal injury. The rotary action of these trimmers allow the blade to cut in either direction and sharpen itself as it cuts. It’s this self sharpening action that produces a clean burr-free cut and guarantees many years of smooth precise cutting. Dahle’s Premium Trimmers are designed for heavy duty applications where precision is essential. Whether you are cutting mat board or a single sheet of paper, you can expect to receive the same burr free cut each and every time. This cutting capacity is made possible by a thick walled square aluminum guide rod which provides maximum strength with minimal side movement of the cutting head. The trimmers can be placed on a table or mounted to a wall. The Model 440 Features: • 14 1/8" Cut Length • Ground steel blade is encased in protective housing for safety • Cuts up to 30 sheets of paper at a time • Easily trims standard size mat board • Self-sharpening blade cuts in both directions • Automatic clamp holds work securely • Sturdy metal base with pre-printed guides • Imprinted protractor for angled cuts • German engineered for precision and accuracy • Dimensions are 22" x 15" and weighs only 12 pounds • Great for photographers, office professionals, print & copy shops and graphic design agencies.