The Rotatrim PowerTech Series 1850 Cutter is made for trimming material sheets up to 73-inch long. It is ideal for cutting large material sheets, posters, and banners. The self-adjusting triple roller cutting head is armed with a self-sharpening Sheffield blade that cuts 4mm sheets easily. The trimmer has electrically driven cutting head that is controlled by a pneumatic switch attached to a steel reinforced belt. This Rotatrim trimmer has 1.5-inch guide rail and metal construction to ensure stability. The transparent clamp strip with rubber gripper let you position the sheet conveniently. There are parallel indents on the extruded satin finish aluminum baseboard for aligning the sheet. The two-way cutting board can be replaced by removing the C.C. plate.