The Martin Yale Premier Heavy-Duty Wood Board Paper Trimmer PREW24 is designed for precision cutting, featuring a through-hardened, self-sharpening steel blade that can cut up to 20 sheets at once. Its heavy, 3/4" wood base includes a permanent 1/2" alignment grid with Imperial and metric rulers to ensure accurate cuts. This versatile trimmer is capable of cutting paper, matte board, cardboard, film, tissue, and textiles, making it ideal for various projects. Safety features include a patented automatic blade latch that locks with every cutting motion and a finger guard that protects the entire length of the blade.