The TrapperLock kinfe by Case was derived from the legendary Trapper knife, but with one blade and one hand opening performance delivered from a thumb stud. The engraved thumb stud is fixed by a torque screw allowing for better control and liner lock enables the one hand opening performance. The TrapperLock holds the Clip blade secure while in working position. The Clip blade is a multi-purpose knife that is detail oriented. Constructed out of Chrome Vanadium steel, increasing durability, sharpness, and longevity of the knife.