Spyderco Sage 5 CPM Rex 121 NW-19 Function never yields to form

Function never yields to form

The blades are full flat-ground VG-10 with a thinner highly refined cutting edge and a larger 13mm opening hole

this 111 millimeter pocket knife can easily stand up to whatever you throw at it

among the hardest known compounds

Spyderco Sage 5 CPM Rex 121 NW-19 Function never yields to formCrucible 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