Putting a thread into the top section

Published Jan. 11, 2018, 11:58 a.m.

I'm using the middle section to help hold the tapping die vertical when it goes into the top section. There's not enough length for the thread not to take immediately so I don't want any wiggling around of the tapping die making a taper at the mouth of the screw hole.

Putting a thread into the top section

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The screw holes for attaching the top section Watch Case Progress Top section screwed into the middle section