Position the tool against the ferrule. If the ferrule does not release easily, lightly tap the tool with a hammer to help it bore into the ferrule for better grip. Luckily, there are a few different ways you can use to remove them. You can probably take off most ferrules with pliers, but more stubborn ones might need some special tools, like a compression ring puller or saw. No matter which method you choose, you'll have the old ferrule off within a few. One of my favorite tools for removing very stuck ferrules in the past (mostly from column nuts) is a Ferrule Removal Tool (see Search | Agilent ). Audio tracks for some languages were automatically generated. Learn more Enjoy the videos and music you love, upload original. Contact your maintenance department and/or a machine shop to see if they have small tools to dislodge the ferrule. Begin with the two-wrench method, using one adjustable wrench to firmly stabilize the pipe body against rotation. Below are detailed step-by-step instructions for each method: Begin by applying a generous amount of penetrating oil around the ferrule and fitting threads.