Quote Originally Posted by JAZZCNC View Post
Why would that be then.? . . . . I've tapped 100's M6 threads deeper than 25mm.!
I meant significantly more. If the tap does not have a reduced shank then clearly the depth it can cut is limited to the length of the tap, which for some of the ones I have is around 20-25mm. Either way it doesn't change the point I'm making.