Installation Process for Thread Inserts
Drilling:
It is use of regular drilling procedures. For Steel, Magnesium and plastics the alternative larger size drills recommended in the second column should be used.
Tapping:
Tapping is usually done in a single operation with one of the types of finishing taps. Roughing taps are available, however, for occasions when materials make both rough and finish cuts necessary.
Gauging Clean tapped hole:
It’s use requires thread gauge to check size and full thread depth in conventional manner.
Installing Inserts Pre-winder type:
Inserting tools are available for hand installation of inserts. The Pre-winder type is a precision tool which aligns and recompresses the insert for easy installation. A slotted mandrel in the tool drives the insert by its tang. This tool is recommended for hand installation of all sizes of Coarse ∓ Fine series of inserts.
Removing Tang Inserts:
The tang on an insert should be removed after installation only when necessary, for screw clearance or product appearance, and in such case notched inserts should be used. This is easily accomplished by placing the punch of the Tang Break off tool into the installed insert and resting tool squarely on the insert tang. Strike the top of the tool with a hammer, using a sharp blow.
Extracting Inserts:
In rare instances, inserts are installed, too deep cross-threaded or otherwise improperly inserted. Such inserts are readily removed with extracting tools which are available in four sizes to fit all sizes of inserts. Place the blade of the extracting tool into the insert. Hit the top of the tool with a hammer, causing the blade to bite into the insert. Push down on the tool and rotate counter clockwise to back the insert out of the hole (inserts produce permanent threads; hence extraction is not normally necessary)