hercus 100/127 compound gear set---part Nos.143,144,144, 145a

Australian made

to suit the Hercus 9" lathe

includes 100t and 127t gears, bush, key and spacing washer (brass plate not included)

 used as main transposing gear to cut metric threads on an imperial machine

additional gears required for all metric threads:-

9A and 9AR = 28t, 32t, 36t, 44t, 48t.

9C, 9CR, 9B and 9BR = 16t, 18t, 20t, 24t, 28t, 32t (2), 36t, 40t, 44t, 48t, 56t, 72t, 80t, 100t.

some of these gears you may already have.

As some of the threads on the attached charts are rarely required, check your existing gears and the chart to

see which you need.

Write a review