The Spyderco Darn Dao faithfully translates every detail of Bob Lum’s meticulously crafted custom design into an equally dynamic production knife. Its satin-finished blade is full-flat ground from thick CPM 154 stainless steel—a state-of-the-art powder metallurgy stainless steel that offers increased toughness over the conventional ingot version of this alloy. The blade’s unmistakable profile pays homage to the iconic weapon that inspired it, while adding a long, unsharpened swedge to ensure an acute point. For maximum strength and a deft balance, the gracefully curved blade has a tapered full tang that is flanked by contoured black G-10 scales. Like its historical inspiration, the Darn Dao’s handle flares at the pommel to ensure a positive grip during high-speed manipulation. It also features a generously sized lined hole for the easy attachment of a lanyard and a modern integral double guard.