Homemade J-Tool

“Ferg” from Sacramento City (CA) Truck 2 sent in this awesome idea on how to create a simple J-tool for non-destructive forcible entry. It even gets some bonus points for being “green” since it almost counts as recycling or reusing. This idea utilizes the leftover political signs that can be found in every dumpster this time of year. The two most common types of signs have an “H” shape, and a “U” shaped galvanized wire frame. The easiest to use for this purpose are the U shape since it already has one of the required bends, but an H shaped one can also be utilized with some additional work.

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Rather than throwing that “U” shaped one in the trash, tear the sign off, and take that frame over to the workbench. Place the frame in the vice, and begin bending it into shape. Before you commit to the exact size, you may want to consider what will fit in your bunker pant pocket. Use a hacksaw or saws-all to cut the excess material off. You may even want to file the edges down to make it real pro, your gear quartermaster will thank you….

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The completed tool will look like the photo below. For the discussion, we will consider the side with the extra bend the “working end.” This tool is designed for use on a double door with panic hardware. For the traditional panic bar style, you use the working end to “hook” the bar of the locking device. It simply opens by pulling the bar toward you.

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Rotating the tool into place and placing the working end on the locking mechanism can also be used to manipulate the push pad style of panic hardware. Again, once the tool is in place, pulling on the tool will simulate someone pushing the pad from the inside and open the door.

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A wood wedge makes a nice companion for the tool to widen the gap between some doors, or even just to keep the weather striping out of your way. While you’re out hunting for signs, keep the rest of the crew in mind. Make enough for everyone, and throw a few extras on the rig for good measure.

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Like with many other non-destructive methods of forcible entry, this probably won’t be your go-to method on a working fire. However, options like this can simplify your life when chasing down sell-of-smoke type calls, and automatic fire alarm activations. With some practice, you’d be surprised how many different types of locking mechanisms can be manipulated and defeated with this tool. You simply need to take the time to Identify and Visualize what you are trying to defeat, and outsmart the locking mechanism.

8 thoughts on “Homemade J-Tool

  1. Frank Lipski says:

    Great tip guys. Thanks for posting this idea. Looks like we have a little project for the next shift. Keep up the great stuff.

  2. Alex says:

    Fabricated a couple of these from the H style sign frames. Be aware that the metal is super soft on some of these – they would not manipulate the push pad style of hardware, the J-tool would just straighten out as I attempted to operate the panic bar.

  3. Chris says:

    We just had a student use this website and how to make the j tool and broke into our elementary building.

  4. Josh says:

    There are tons more sites that will show you how to get into things like this. Sorry.. Im sure it has helped more men than helped bored children

  5. Bernard Haegeman says:

    Sir,
    What size you use for the metal?
    Thanks

  6. Fs says:

    Many typos and misspellings, but thank you.
    Sell of smoke (smell)
    Weather striping (stripping)

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