•HeliCoil Complete Gauges - complete gauges consists of the GO thread plug gauge, the HI thread plug gauge and the appropriately marked gauge handle. HeliCoil Extraction Tool Where HeliCoil inserts need to be removed from the hole after installation, they may be removed manually with little effort using the Emhart Technologies HeliCoil Extracting Tool. Removal is done by applying the extraction tool to the HeliCoil insert, giving the head of the tool a light blow with a hammer, and turning it counterclockwise, maintaining steady downward pressure. Emhart Technologies HeliCoil Extraction Tools can be used to remove both HeliCoil Free Running, and HeliCoil Screw Lock Inserts.