What tool is used to open a double swinging door with a panic bar?

The J Tool is specifically designed for the purpose of gaining access to structures through double swinging doors equipped with panic bars. Its shape and design allow the user to manipulate the panic bar effectively from the exterior of the door, often without causing damage. The J Tool can be inserted through the gap in the door to hook under the panic bar, allowing for the door to be opened smoothly and efficiently.

Other tools listed, like the Flathead Axe, Halligan Tool, and Coat Hook, serve different primary purposes in firefighting and forcible entry scenarios. While they have their own specialized uses, they are not as effective or efficient for this specific situation. The Flathead Axe is more commonly used for breaking windows or creating an opening in structures, the Halligan Tool excels at prying, twisting, and shouldering, and a Coat Hook is typically more associated with other tasks, like snagging or pulling objects. Thus, the J Tool stands out as the most suitable and effective tool for opening double swinging doors with panic bars.