I am attempting my first full restoration (unpinning/pinning), and I ran into a snag. The hole in the blade is bigger than the brass rods I purchased as a kit. I know that I could JB Weld the hole, and redrill it, but I seem to remember seeing some kind of brass tubes/bushings that can be utilized for that, which I would prefer over filling the hole with epoxy. For the life of me, I can't remember where I've seen these "pipes". Some guidance, would be much appreciated.