The wavy copper line you see running through the blade is the brazing that permanently joins the razor-sharp, durable D2 cutting edge to the Sandvik 14C28N spine. On the edge is a high-carbon, high-chromium D2 steel capable of taking and holding an incredible edge. On the spine is high-performance Sandvik 14C28N. The Composite Blade Leek shares its 3-inch blade, slim, easy-to-carry design, and versatility with other Leeks. The modified drop-point blade shape makes it a good slicing knife, while the slim tip gives it excellent piercing and detail work capabilities. The SpeedSafe assisted opening system makes it easy to open the knife one-handed, whether you're a lefty or a righty. A super-secure frame lock keeps the blade locked open during use and a Tip-Lock slider locks the blade closed when folded. The pocket clip can be configured for tip-up or tip-down carry and the handle is drilled to accept a lanyard.