Both screws were turned to 0.60in ( 0.025in undersize), then roundered, resulting in flattened crests on the thread. No.7 , the top screw, was cut after wiping the sized dowel down with BLO. The lower screw No.6 was lightly rubbed with paraffin wax after sizing. I fully expected a failure on this one, as it started badly, breaking out 3 inches of twisty grain, and forcing a restart.
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