Negi Sign Systems & Supplies Co supplies Single Tool Cutting Plotters. Negi Sign Systems & Supplies Co also manufactures various types of digital printers, screen printers, sign makers etc and state-of-the-art materials to maximize equipment performance and output. The Single Tool Cutting Plotters, Model SC- 650, accommodates vinyl widths of 850 mm and can cut up to 630 mm. The Single Tool Cutting Plotters features a dual action head for precision cutting/drawing and for automatic sheeting off.