[gtofreek]

Here are some shots of the crooked head stud hole.







So we squared it up in the mill, and bored the hole with an endmill that was smaller than the size we wanted to drill for the thread insert. We did this with an endmill because a drill bit is more likely to follow the crooked hole. The endmill bores the hole straight so we can drill the correct size hole straight. We used a Lock-N-Stitch 1/2"x13 thread insert. These insert are unique in the fact that the threads are curved upwards, so when you tighten them, They pull the parent metal in towards the center, rather than spreading apart, like a conventional thread. They make crack repair pins the same way.



Then we tapped the hole, and installed the insert.





Now the suds are straight.