Davidson Action Wrenches are designed for the switch barrel shooter with a custom built rifle. These tools are not designed to remove factory installed barrels. Action wrenches are used to break the action free from the barrel while the barrel is held in a barrel vise. This allows the shooter to change barrels in a matter of a few minutes. All rear action wrenches are inserted through the rear of the action and have a 3/4 inch hex end which requires a wrench for turning. Port wrenches are inserted through the action port and are turned by hand. Barrel Vise available separately.
Sinclair, Issue:4A, Page:249