KUNSX703T1 Kunwu Knives Chad XT Lock TiThe SX703T 1 Chad packs a 3. 5" sheepsfoot blade in PM 60 steel, a high hardness powder metallurgy steel that holds a sharp edge well and resists corrosion, paired with a full length titanium handle that keeps the knife light and durable. The stonewash finish on the blade and textured titanium scales provide a refined aesthetic while resisting fingerprints and minor wear, and the extended tang ensures solid lockup through the XT lock mechanism. At 4.