Boring a hole question...
Andrew,
you didn't actually say, but I suspect you changed out the boring head
for other
tooling then put it back in for finishing the other pieces, etc.
That's where the error lies. Don't expect R8 tooling in a worn mill
spindle to
repeat position precisely. Won't happen. The boring head has to be
redialed in
each time it's replaced.
RichD KT4IZ
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