Robert Swinney wrote:
A new twist on the old, worn-out "chicken and egg" question. IMO, the original question would have
been more appros to this group had it said "machining operation" rather than "metalworking
operation".

Good point. It was never clarified whether "done
by hand" might include turning a lathe spindle
with your hand...


Bob Swinney
"Jim Stewart" wrote in message
.. .
MikeMandaville wrote:
Any metalworking operation which can be done by machine can also be
done by hand. Is this statement true oe false?

Cutting a usable thread (particularly an inside
thread) without tap or die would be virtually
impossible without a thread-cutting lathe.