In article , Doug Warner says...

I disassembled and cleaned it (before all these replies), and had
already re-ground the jaws by running a stone in the tailstock through
them. Upon close examination on the bench, they're still bellmouthed.

If the jaws have more than a thou or so of slop in the body
of the chuck, in the slots, as it sounds like from your
description of trying to stone them, it is most likely
trashed.

That is, if you can grasp them by hand and rock them
in an angular fashion so that one end moves more than
a thou, it's toast.

Jim

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