SOG X-Ray Vision Knives XV71 are both practically-priced and strong enough for extended tactical use. These efficient SOG knives make use of a 3.75" partially serrated blade, similar to the one found on the SOG Vision knife. The blade of these knives is crafted out of extra-strong VG-10 steel, a metal that has an HRC rating of 59 to 60. SOG X-Ray Vision looks great, with the combination of a midnight black glass-reinforced nylon handle and the anti-reflective bead blasted finish of the blade. A reversible pocket clip makes for a handy knife accessory, allowing both left and right-handed users mount the knife to their pocket, belt, vest, or other equipment for easy access. SOG Specialty Knives and Tools has built the patented Arc-Lock blade locking system into the X-Ray Vision, featuring an ambidextrous thumb stud and one-handed blade release and retention functionality. For a secure, efficient folding knife from SOG, purchase the SOG Xray Vision Stainless Steel Knife.