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I just drilled and tapped Uberti Walker arbor no. 1 for the bearing screw. From what I understand the most common practice is to set a spacer (washers) and secure with something like JB cold weld.
Has anyone used the tapped threads to attach a screw with a contoured head to meet the convexed bore end and then fine tune with shims? My thinking is that switching between the original c&b cylinder and the kirst cylinder may expose a slight difference in cylinder gap.
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