Why is it necessary to buy the insertion tool?
Due to the unique design of the Invert-A-Boltâ„¢ outer housing, it would be rather difficult to install the housing completely without the insertion tool designed just for that purpose (flush mount application). The Invert-A-Boltâ„¢ T-slot work supports do not require any special installation tools. The other products, however, do require installation tools. See the applicable catalog page to determine the correct part number for the insertion tool.