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Metric Acme Tap

terry_g

Ultra Member
I found a picture I took of a 12mm x 2.5 tap I made.
I needed to make a new cross feed nut for my metric SouthBend lathe.
Its made from W1 drill rod and hardened and tempered. It took a lot force to
cut the threads, you can see the twist it developed.

4591762325_dc13c331f3_b.jpg
 

DavidR8

Scrap maker
Administrator
Moderator
Premium Member
Wow, rather amazing (and lucky) that it twisted and didn’t break.
 
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