What’s the best way to repair 1.75”x1.5” tubing 4’ long, they are for oilfield pumps so if I can figure it out could potentially be hundreds or thousands of them to do. Basically they have plungers that run through them and they get grooved and it causes them to slip the fluid and stop pumping but they sell oversized plungers. So I would like to be able enlarge the barrels so they can be reused. Some are brass, some are stainless. I would like to be able to do .01, .02, and .03 over 1.5”. What kind of tooling would you use boring bar, reamer?