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<p>[QUOTE=&quot;Conder101, post: 1369515, member: 66&quot;]There are two possible sources for lathe lines.&nbsp; They could be created when the lathe is used to make the shallow cone on the die blank, or they could be left on the master hub from the reducing lathe.&nbsp; Since the lines are on the field they can be polished off the fields of a die.&nbsp; But polishing them off the fields of a hub, and removing them all the way to the edge of the devices, without polishing details off the hub would be very difficult.&nbsp; Lathe lines from the master hub could be polished off the master die and not progress to the working hubs and working dies.&nbsp; The chances that the lines would survive the polishing of both the Master die and the working die would be slight.&nbsp; Lines left from the machining of the die blank is much more likely.[/QUOTE]</p><p><br /></p>

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