This is the other end of the rod where the GEET gases will exit the center tube. Note I've put a contour/concave shape here as outlined by Pantone. How did I do this? Before doing any grinding on this, I found the exact center of the rod and center punched it. Then I drilled a small ID guide hole to prevent the drill bit from wandering. Then using a 1/2" drill bit I drilled down into the rod end until the concave shape was accomplished. Later after grinding everything smooth it looked great! That white PVC tube on the center tube is only for alignment purposes. Once the parts are properly welded and tightened into place that won't be necessary.

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