What is the Drive Wrench used for?
Traditionally, both the Wrench Tool and the Swage Tool were required to complete the installation process. However, The Crownserts® Hand Installation Tool now combines these two functions in one tool.
The drive wrench is used to screw the threaded insert into the prepared hole after the it has been drilled and tapped. It engages the wrenching recess inside the insert and allows the installer to turn the insert into the tapped work piece.
This is the positioning step of the installation. The drive wrench places the insert at the correct depth before the separate swaging operation begins.
Matching the Wrench to the Insert
The correct drive wrench must match the wrenching shape inside the insert. Non-locking inserts typically use a 4-point wrenching recess, while self-locking inserts use a 6-point wrenching recess.
Using the correct wrench prevents damage to the insert and makes sure the insert can be driven cleanly into the prepared thread.
Insert the drive wrench into the internal wrenching recess of the insert. Keep the wrench aligned with the prepared hole and turn the insert into the tapped thread.
Continue until the insert is seated to the required depth. The drive wrench should install the insert without forming or locking it; its job is to place the insert correctly before swaging.
Finishing up
Making use of the drive wrench, the insert is now screwed into place. Next comes the swage tool which will then apply force to set the insert’s external locking feature into the surrounding material.