Power tapping on a Horizontal boring mill

[Martin W]

I have tapped before with a tapping head on the drill press and mill, but What is the process for power tapping on a HBM? Do you feed the quill by hand? Stop at the end and disconnect the tap. Back out by hand? Reverse under power and feed the quill by hand? Do you feed the table by hand? This would be very tricky?
I have about a six 3/4” -10 holes to drill and tap on a steel 1” plate. I have a MT-4 tap holder.
Thanks
Martin

 

[benmychree]

Not a problem, feather the clutch feed in by hand , reverse, feeding again by hand so that the tap does not bugger up th first threads as it exits the hole.

 

[Martin W]

Thanks John, I will give it a try.