Lauri-opening-78-stainless; (78x20x3.25mm), is the European version of a gut hook. Because it cuts the hide from the inside it's less likely to get clogged with fur, and cuts thicker hides more easily.
May be paired with 18*28*3-STRAIGHT bolster, 19*30*3-STRAIGHT bolster, or 15*23*13-STRAIGHT ferrule.