A Self Tapping Insert to install and remove

The installation of Self Tapping Insert
Drill out old threads with a standard drill. Note: Drill is oversize — see charts for proper dimensions. Chamfer the hole with a standard countersink (82°-100°).Tap new threads with a standard tap. See charts for proper size and depth.Screw in the insert until slightly below surface.Drive keys down with several hammer taps on the proper installation tool

Remove the Self Tapping Insert
Drill out material between keys and internal thread with standard drill to specified depth (refer to charts for proper dimensions).Deflect keys inward and break off.Remove insert using an E-Z OUT or similar type tool.Same size replacement insert may be installed in the original hole.