Acer Dynamic 3370X Operations Manual & Parts List page 22

6. Cutting thread is 1.1,2.75,5.5 of table data, use worm gear 11T can be aligned
with a single mark, repeat the original single-point cutting until done only once.
7. Cutting thread of 1.3,3.25 table data, use the worm gear 13T can be aligned with
single mark, repeat the original single-point cutting until done only once.
Thread Cutting Chart for X Series
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