S.O.G. SOG-TAC Auto Knife Tactical Drop Point Black TiNi ST-06, Overall open length 8" with a 3.5" blade but relatively slim for a great pocket carry! AUS-8 Steel, Reversible pocket clip. The SOG-TAC is an invigorating auto knife design like nothing else. It's big but relatively slim & specifically designed for action. The blade travel is extremely fast and once open locks up like a floor safe. Each handle is machined out of 6061 T6 hard-anodized aluminum. It has a safety button that double locks the blade in the open/closed position.