This versatile little shove knife is often the quickest, easiest, and least destructive way to open locked interior doors in residences or offices with simple “key in knob” locks.
The clever design lets you use the shove knife from either side of the door. If the door opens inward (away from you), you shove the thin, flexible blade in back of the molding stop and push or slide the blade to retract the latch. For doors that open outwards (toward you), the knife is slipped in from above or below the latch point and jiggled and pulled to hook and retract the latch. Also used extensively in fire towers to slip spring latch locks during training exercises.
The protective cover slides over the tip of the shove knife, is easy to remove when you need it, and also provides added protection.