Designed to perform, the OLFA 25 mm H-1 classic extra heavy-duty utility Knife with rubber grip inset is up to the task. The robust ABS plastic handle offers added leverage. The stainless steel blade channel supports the blade for a cutter made to last. Working in damp or humid conditions. The anti-slip rubber insert in the handle ensures grip and adds comfort. Use the ratchet lock blade actuator to adjust the blade to any cutting depth needed. Preloaded with a tough HB extra heavy-duty silver snap blade for use out of the package. Each blade offers seven segments for volume cutting with a quick snap of the blade. No extra tools are ever needed to keep your blade sharp. To change the blade, loosen the ratchet wheel and slide the blade from the back of the tool. Insert a fresh blade, tighten wheel and return to work.