Hi,
I was tapping 6mm in 1/2" steel. Drilled 5mm and used WD40 as it was
handy. Pretty hard going and I snapped the tap on the 2nd hole. Enough
stub to wind it out with the vice grips. I ordered some Tap Magic and
waited for the postie.
The 2nd & 3rd threads were a breeze. I could have turned the wrench
with my little pinkies. I'm not practised at tapping deep threads. The
1/2" steel had a prior life as an anvil on my bench so it was probably
pretty narly. Still, I'm astounded at this Tap Magic. Is that the
experience of others?
John
