QCM 8200M Heavy Duty Desktop Stack Paper Cutter Portable size with 360 sheets capacity, 12-3/8 cutting width; Solid steel blade carrier with needle bearing joints and high-speed steel blade; cast steel base with measuring grids; Accurate steel side gauge with measuring scale, precise aluminum back gauge with nylon tip brass locking knob; Automatic safety blade lock prevent cutting until released; all metal positive paper clamp; Easy blade replacement; non-skid feet.