Need the tool to adjust tension on the "Ball Catch" (product code 10-057)

I think I have your Ball catch, product code 10-057, and I want to adjust the height of the ball (lower the ball, to make it easier to open and close the door). I see the two notches, separated by 180 degrees, on either side of the casing which surrounds the ball. I presume that is where the tool is used to make the adjustment. Can you find the tool for me (it must exist somewhere??), or do you have an alternate recommendation for me? Thank you.

Mine may not be the 10-057, but both mine and the 10-057 have notches in the metal casing, located on the top of the device (not tabs on the side, which are used to secure it during installation), which allow the metal casing to rotate (after installation) under rotational forces applied through the adjustment tool, causing the ball to protrude out to a greater or lesser degree. Without the tool, one is forced to use 2 screwdrivers (or other tools with pointy tips) with 2 hands simultaneously, which is very awkward, and it is not easy to get leverage. Can you get me the name of the manufacturer?

The tool you are looking for is a Quarter. Push the ball down til it hits the slots and turn to adjust. Easy Peasy.

Excellent suggestion...worked like a charm. Thanks for sharing.

Quick learner from Texas, that quarter is a great tool! Thanks for the tip.