TiSpine. We have made a new knife, TiSpine. It is a monolithic Titanium frame, 6Al4V, with a frame lock system (like SR1). The handle is worked with a 4 axis milling machine in order to have a full ergonomic titanium's handle. The blade is made of ELMAX Uddeholm Sweden, powder metallurgy production. It has 59-60 HRC of hardness.