No KVT. No flipper. All function. The 0640 is a ZT and Ernest Emerson collaboration built for practicality and eye-catching style. The clip-point blade is CPM 20CV high-chromium stainless steel for a wicked, long-lasting edge. The handle is titanium with a green-and-black carbon fiber overlay on both sides of the handle. This fully manual knife opens one-handed with a thumb disk.