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Hercus 9A lathe 100/127 transposing gear set for metric threading

by Schtimpy

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9 inch lathe Boxford 9A Boxford lathe Hercus Hercus 9A Hercus AR Hercus lathe Lathe metric gear set Metric gears Metric thread gears Metric threading Sheraton 9A Sheraton lathe South Bend 9A South Bend lathe southbend Threading gears

For cutting metric threads on an Imperial lathe with 8TPI leadscrew.

This set of transposing gears is designed for a Hercus 9A imperial (inch/english) lathe (9" model A lathe with quick change gearbox and 8 TPI leadscrew) and is used to cut metric threads. The Hercus is a South Bend clone, and shares the same parts, as does the Boxford 9" and Sheraton 9" South bend clones.

This gear set uses the 100/127 compound gear to provide the imperial to metric conversion. The 100/127 compound gear i

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