[TheForge] 2 tapping questions, oops 3

[Jeff Harding]

That kind of "tap", without teeth, is supposed to push bogeyed threads
back in place enough to get a bolt into the hole.  A regular tap
removes metal when you use it on bogeyed threads, theory is pushing
the threads back in place is stronger... probably is.

   Jeff   ><>



> I haven't come across NS before either. I've had some chasing taps
with no



> flutes for spaces in the cutting teeth.
> 3.  One of the taps has no flutes or spaces in the cutting teeth,
but the
> cutters are continuous 360 degrees.  What is it?  I have some
retreading
> taps and they don't look like that.
>