That is one reason people have been recommending heilicoils. The drill an tap size is about 30% larger than for #4 screws without the inserts. It is easier to do and when you are done there are stainless female threads that are much stronger.
On Thu, May 25, 2017 at 3:57 PM, ed breya <[email protected]> wrote: > ..., you can save a lot of grief by using a slightly larger bit than the > standard tap drill. You're not really too concerned with optimal fit and > strength here - it's more about being able to make a whole lot of usable > screw holes without losing too many bits and taps, -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
