Being tenacious means one holds fast. One is persistent and cohesive. It means being tough and tireless until achieving your goal: all knife-worthy definitions for a worthy knife. The 8Cr13Mov stainless blade is leaf-shaped with a serrated edge. The blade's shape coupled with an oversized Spyderco Round Hole and textured spine jimping allow you to open the blade and position your thumb on the spine in slip-proof confidence ready for work. A Walker Linerlock (with jimped liner) and a 4-way pocket clip lets you set your carry and draw preference: Tip-up/tip-down left-hand/right-hand. Screw together construction.