Brand New STACK S12 Heavy Duty Paper Cutter. This paper cutter is a very high quality, high precision paper cutter. Right out of the box you will notice the high quality of this machine. The blade on this unit is a hardened steel, razor sharp, 30cm blade. It will easily cut a stack of 20lb paper, 400 sheets high or approx 1.5." The blade lasts for hundreds if not thousands of cuts. However, should you ever need to replace the blade, this cutter is designed so that it is very easy to do. Unlike other paper cutters that require you to disassemble the entire cutting assembly, the STACK S12 heavy duty paper cutter has an easy replaceable blade. Simply use the included Blade Replace Handle to hold the blade while you remove the screws that hold the blade in place. The blade comes right off and a new one can be put on just as easy. This is a huge plus as most people who need the blade replaced on other paper cutters will have to send it back to the manufacturer for blade replacement due to the high difficulty and danger of replacing other heavy duty paper cutter blades. The STACK S12 Heavy Duty Paper Cutter is ideal for Schools, Churches, Businesses and small Print Shops.