Using a tap to cut threads?! I know, crazy, right? But just you watch!
In a pinch you can use a smaller tap of the right pitch to thread larger bores than the tap was intended for.
Watch video Using a TAP as Thread Boring Tool online without registration, duration hours minute second in high quality. This video was added by user This Old Tony 21 February 2021, don't forget to share it with your friends and acquaintances, it has been viewed on our site 1,625,076 once and liked it 51 thousand people.