Universal tool. While this is for tires, the smaller end fits the Walther PK380 pistol, which can be used as a "key" for disassembly. I still have the original plastic key that came with the gun but wanted it to be easier to see when shooting on location. I wish (to make it easier to see if it fell in the field) there was an easier way to attach something larger to this item. I tied some heavy gauge wire together with a twisted zip tie and then screwed a wrench to the U-shaped ends of this item. So finding it in the field if necessary will work, but of course to use it I have to undo a twisted tie. It definitely works great for the PK380 so I bought it and the key (this one) was not supposed to stay in the gun unlike the one that comes with the gun. It's also stronger than the plastic that came with the gun. It's always nice to have a spare key for disassembly anyway. Highly recommended if you use it on this particular gun as well as tire valves.
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