The advantages:
Miniature
Solid, one-piece insert construction provides a high degree of pull-out strength
Keys supply a positive mechanical lock against rotation
Easy installation and removal
Installed with standard drills and taps
No pre-winder tool required
No tang to break-off
May be used in many types of material.
Removal:
If necessary,Keylocking Inserts can be removed without damage to the parent material:
Drill out material between keys and internal thread with a standard drill to specified depth (refer to charts for proper size and depth).
Bend the keys inward and break off.
Remove the old insert using a screw extractor or similar device.
Install a replacement insert into the original tapped hole and drive keys down.