Designed for precision and maximum performance for all your home office and crafting cutting needs. Heavy-duty CarboTitanium blade is eight times harder than steel. Cuts up to 30 sheets of 20 lb paper thick cardboard and more. Safety guard and lock keeps the blade from moving. Finger rest keeps fingers safely away from the cutting area. Alignment grid and on-board measurements in US and metric for precise measuring and accurate trimming. Manufacturer s 15-year limited warranty.