For the T-rods, I use 2-00 or 3-000 steel wool and mineral oil with a nut driver on my screw gun to run them in and out a few times. This works well for square heads. You may want to use some thing a little stronger with that must surface rust. You may have to rig something if you want to use the screw gun on those. I don't know what could be used for BD rods. I'm sure if you have a shop with a small welder, it would be possible to rig something. hmmm...a new light bulb just exploded in my head...Excited