CARL Professional Rotary Paper Trimmer 18 inch Carbide blade provides smooth operation Cuts up to 10 sheets of standard 20-pound bond paper Cuts mat board, card stock, plastic sheets, etc; ideal for home office functions or craft projects Up to 11 different cutting blade patterns available -sold separately Limited lifetime warranty -excluding blade and cutting mat CARL Professional 10 sheet rotary paper trimmer with a solid metal calibrated base board, carbide blade, patented rail system and alignment grid and ruler. Count on precise, accurate cuts with the premium carbide blade. CARL Model number RT-218, cuts up to 10 sheets. Patented rail system holds paper firmly to ensure a sharp edge and exact cut. Sturdy metal base is calibrated and features preset measurements for common-sized items.