Armstrong ArmaCoil Thread Plug Gauges & Extraction Tools

Armstrong ArmaCoil Gauges are available in both 5H or 6H class of fits for Metric Threads, 
2B or 3B for Unified Threads and close medium for Whitworth Threads. 


The class of fit of the finished assembly is dependant on the accuracy of the tapped hole. If the 
tapped hole gauges correctly, it is not necessary to gauge the installed ArmaCoil thread inserts.


After the Armstrong ArmaCoil insert is installed, the Go Gauge may on occasion, not enter freely. 
However, the ArmaCoil screw thread insert will always seat itself when the bolt or screw is 
installed and tightened.

The Armstrong ArmaCoil Extracting Tool has a hardened gauge steel blade which is ground to 
dig into the top coil of the ArmaCoil insert. ArmaCoil Extraction Tools can be used to remove 
both ArmaCoil Free Running and ArmaCoil Locking Inserts. 


Extraction Procedure

•Place the blade about 1/4 coil from the end of the ArmaCoil insert and apply pressure.
•Rotate the tool anti-clockwise to remove the ArmaCoil insert. 
•Discard the extracted insert and install a new ArmaCoil insert.

> ArmaCoil Screw Thread Inserts

> ArmaCoil TwinCoil

> ArmaCoil Thread Repair Kits

> ArmaCoil Power Tools

> ArmaCoil Installation Tools

> ArmaCoil Gauges & Extractors

> ArmaCoil STI Taps

> ArmaCoil Tang Break Off Tools

> ArmaCoil Installation 
   Instructions 

> ArmaSert Brass Inserts for 
   Plastics


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