jppostKW
Well-Known Member
I built a diy version of derrins sanke conversion today all went well until I tried tapping the holes one was drilled to 7/16 for a 1/4 npt fitting the other 9/16 for a 3/8 npt I used thread cutting oil but it was really tough and ended up chipping my 3/8 npt tap the cap is 316L I was wondering if I need to use a specific stainless tap are my hole sizes wrong etc.
Thanks guys
Paul
Thanks guys
Paul