cut block for nipple to sit into. made mine from a chunk of 4130 chrome moly steel in the milling machine.
place nipple into block with flash hole up. set a 3/16" to 1/4" bearing ball on flash hole and put in hyd, press. i went from .026" to .022". didn't seem to distort threads enough to make any difference.
place nipple into block with flash hole up. set a 3/16" to 1/4" bearing ball on flash hole and put in hyd, press. i went from .026" to .022". didn't seem to distort threads enough to make any difference.
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