Hi all,
I've got a Haas VF-1 with Rigid Tapping and I'm trying to tap some 1/4-20 holes. I have no idea what to use as a spindle speed. I guessed and chose 400 rpm, which gives me a feed of 20. I just broke the second one after a few holes. Any suggestions?
Also, I'm just spraying flood coolant during the tapping cycle. Should I manually be squirting rapid tap or something on the tap.
(I'm tapping them .55" deep)
Thanks!