A: There is a quick and easy method, but it should be done in stages so as not to overdo it. Make a mark on the ferrule with a Sharpie pen so you can insert the ferrule every time at the same position. Insert the male portion of the metal ferrule in the chuck of a drill. Slowly tighten the chuck until it begins to compress the ferrule. This will produce three evenly spaced ridges. Lubricate the ferrule by rubbing it against the nose to get a thin oil film on it and then try fitting it into the female ferrule. If it is still loose, repeat until you get a good fit.