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very very well done sirLatest escapade in PapaD's little shop of horrors. I scored a set of 2004 Callaway Big Bertha irons for cheap. Graphite shafts were beat. Ring ferrules were beat, broken or missing, heads were fine. I had some shafts, so I ordered collared ferrules, bore-through shaft pins for graphite and some grips. Goal - learn how to reshaft a bore-through iron head. I had to do some math (uh-oh) because tip trimming is different with bore-through since the shaft goes deeper into the clubhead. Turns out 1/2" less of tip trim was the answer once you learn how to measure BBGM (Bottom of Bore to Ground). Anyway, after lots of reading and asking, these turned out OK. I don't have really good finishing/polishing tools so they could have looked a little better, but I'm happy and the buddy that just bought them is happy.
Pulling old head
Reaming hosel - Callaway hosels have a taper at the end. My shafts were .370 parallel. Yes, it's easier to clamp the reamer in a vise and push/turn the head.
Everybody lines up for business!
Glued up with bore-through pins inserted. Shaft hole has to be plugged so the critters can't crawl in there and make nests.
Finished project - had to use my cutoff wheel and wire brush wheel to smooth things out. A Scotchbrite wheel is the answer - just ordered one.