Professional Rolling Trimmers 558 trimmer

These sturdy rolling trimmers are the new generation of paper cutters. Designed for safety and accuracy, their cutting blades are encased in a plastic housing that virtually eliminates the chance of personal injury.The rotary action of these trimmers allows their blades to cut in either direction and to sharpen themselves as they cut. It?s this self-sharpening action that produces a clean burr-free cut and guarantees many years of smooth, precise cutting.Other features include an automatic paper clamp that holds work securely, adjustable backstop, and a metal base with preprinted grid lines.550 trimmer is 21 3/4 in. x 14 1/8 in. It has a cutting length of 14 1/8 in. and can cut 20 sheets of paper at a time.552 trimmer is 27 3/4 in. x 14 1/8 in. It has a cutting length of 20 1/8 in. and can cut 20 sheets of paper at a time.554 trimmer is 36 in. x 14 1/8 in. It has a cuttingl