Spyderco Sage 5 CPM Rex 121 NW-19 while the solid framelock is

while the solid framelock is only visually discreet

the third-generation expression of the Techno continues the evolution of this compact

among the hardest known compounds

This advanced alloy contains a high volume of vanadium carbides and the highest amount of chromium of any vanadium-rich steel currently available

Function never yields to form

Spyderco Sage 5 CPM Rex 121 NW-19 while the solid framelock isCrucible Industries CPM REX 121 is a high vanadium, cobalt bearing tool steel designed to offer the greatest wear resistance, attainable hardness, and red hardness available in a high speed steel. Created to bridge the performance gap between high alloy tool steels and carbide materials in demanding industrial applications, when applied to knife blades, it offers extreme hardness and unequalled edge retention. This unique expression of the popular