dodgedifferent2 said

we have a place called varco industrial not sure where you can ge tthem from in the U.S. but
I love the spiral point taps that i can get from them. Work awesome for power tapping


the interrupted tap works like butter in stainless


http://www.projectsinmetal.com/an-introduction-to-tapping/

for general ideas about tapping The taps listed above cost a bit more cash I think i use the brand DORMER alot, but i may have the wrong name

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