They have wire brushes that are shaped like bottle brushes, in various diameters, that you can stick in a drill chuck and use to clean out some threads. They're usually referred to as "Spiral Wire Tube Cleaning Brushes." But make sure you use a wire material that isn't harder than the thread material. If the threads are brass or aluminum then use a brass wire brush. https://pic8.co/sh/pPgtbT.jpg
They have wire brushes that are shaped like bottle brushes, in various diameters, that you can stick in a drill chuck and use to clean out some threads. They're usually referred to as "Spiral Wire Tube Cleaning Brushes." But make sure you use a wire material that isn't harder than the thread material. If the threads are brass or aluminum then use a brass wire brush. https://pic8.co/sh/pPgtbT.jpg
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