You use 4jaw chuck?
I have 5" [125mm] has good size hole. It has 1?" 30mm size

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On Sat, Jun 1, 2024 at 03:40 PM, MikeK wrote:
I seem to remember some years ago someone had increased the through-bore of the standard 3" 3-jaw chuck, but I can't remember where and didn't find anything in my search.? It may have been toolsandmods.com, but that site appears to be defunct now.
I was using the lathe last night and the 5/8" bar stock I was using had trouble sliding through the chuck bore.? It was really tight.? How big can you go without causing issues?? I know the screws holding the back cover on are already close to the bore.
Mike