[Shop-talk] Redrilling a 1/4-28 hole

[John Miller]

On 1/15/2023 9:01 PM, Ed Reiss wrote:
> John -- Try a Heli-coil for 1/4-20.
> 
> You drill out the current hole and rethread using the heli-coil tap. 
> Then thread in the heli-coil. Presto-change-o -- you now have a 1/4-20 
> threaded hole

I am a big fan of Timesert inserts.  If you've got the material they're 
far more positive than a Helicoil.  Alas, they're also much more 
expensive...

John.