7/8-18 LH tap ?

Jeff B

Thanos was right
Joined
Dec 23, 2006
Location
Lincolnton N.C.
I need to chase out some threads and for the life of me I cannot find a 7/8-18 LH tap.

Anybody have one I can borrow or buy?
 
Could you take a bolt
With that thread pitch and cut 4 flutes/grooves with a cutting wheel in it to act as a cleaning tap?

Just thinking cheap, and could waste a bolt or TRE for cheap just to clean up the threads.


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The threads are clean, just tight. Almost lost the high angle TRE. I have a RH tap and saved it. The left is real right, shrank a bit after welding.
 
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