Rob Flinn
Well-known member
Junction said:Rob, its been like 20 years since I have been tapping holes for a living, but trying to visualise in my head, but turn that sucker in 1 turn clockwise and then back it off anti-clockwise half a turn to break off the swarf and then continue like that all the way through, 1 turn forward, 1/2 a turn back. If you just try to plough through without the forward/ back approach, thats when you will either break the tap or tear up the thread.
Maybe one of you other "ginger beers" would like to comment, but this forward/back process is the way to go.
Michael
Yes, I remember this from school, & plenty of lubricant !