SOG Tac 3.39inch Folding Knife -The go-to folding knife for uniformed professionals, SOG-TAC XR features a 3.4 inch cryogenically heat-treated D2 tool steel blade and ultra-grip G10 handle. SOG's XR Lock enables smooth ambidextrous single-handed opening in three different ways, with extremely secure blade-lock once open. The next generation of designed and engineered performance in a tactical pocket knife. Features Purposeful Design -Designed for professionals, featuring ambidextrous smooth open and solid locking XR Lock, CRYO D2 stainless steel blade and ultra-grip G10 handle for enhanced control. XR Lock - SOG's XR Lock allows for smooth, controlled one-handed opening when intended with kick opener, thumb stud, or holding back the lock and flicking out the blade. Provides the ultimate built-in blade locking security when open, able to withstand 1500 pounds of force. CRYO D2 Steel - A versatile high-carbon tool steel that is cryogenically heat-treated to SOG's unique performance specifications. D2 provides the ideal combination of edge retention and durability for long term use with ease of maintenance. Ambidextrous Design -Designed for single-handed ambidextrous use, with all functions accessible by either hand, including reversible clip mount for left or right-hand carry.