The Olfa Woody Cutter Model Snap Off Knife 18mm with Auto Lock is a precision cutting tool designed for heavy-duty applications, particularly for cutting through materials like wood, plastic, and other tough surfaces. The 18mm blade is wider than typical utility knives, providing increased stability and control during cutting. The "Snap Off" feature allows for easy replacement of the blade as it becomes dull, simply by snapping off a portion of the blade to reveal a fresh, sharp edge. The Auto Lock mechanism ensures that the blade stays securely in place during use, enhancing safety and accuracy. This cutter is ideal for professional or DIY projects that require clean, straight cuts.