[SEL] NPT taps

[Dave Rotigel]

>be sure to use a 1/4 turn advance-1/3 turn back motion when taping.
>if you keep taping continually without the forward and back motion on the
>tap handle, the tap will plug with chips and break. there is no warning
>either :-))
>marv in minn

Hi marve, Do you want to rethink this "1/4 turn advance-1/3 turn back" 
advice, or shall we just wait and see how many people are unable to keep 
the tap in the hole while following it?
         Dave