What a knife.. The Kershaw Tilt Knife 4001SW Limited Edition, and boy we were so sad to see our last couple go. It has a dual component blade with a Vanax 75 cutting edge laminated to a 420 stainless steel core. One side of the handle is a titanium frame lock while the other side is scaled with carbon fiber. Even though it is manual opening, it glides open with speed and authority. www.Kershaw-Knives.net