The Dahle 533 Professional Guillotine paper cutter is designed for precision and durability. It features a self-sharpening system for a perfectly honed blade, a safety guard to protect fingers without obstructing your view, and a sturdy metal base with screened guides for easy alignment. This German engineered paper cutter is ultra-precise and is ideal for paper and cardstock. SELF-SHARPENING- This trimmer features a self-sharpening cutting system. No need to worry about replacing dull or worn blades, this system sharpens as you cut to maintain a perfectly honed edge. The blade's precision graduated edge will remove even the tiniest sliver of paper and produce a clean, burr-free cut. SAFETY- Safety is a hallmark of Dahle Professional Guillotine Trimmers. The safety guard protects your fingers from the blade and doubles as a manual clamp to hold your work securely. The blade is designed to stay in position and not fall unexpectedly. BASE WITH GUIDES- For durability, this German engineered trimmer features a sturdy metal base with carefully screened rulers and guides to help align your cuts. It's a solid foundation that will never warp or crack.