Indicator height stand slide

This slide fits a metal inspection plate I use with a height stand holding an indicator over a V-block to inspect runout on a part I make on a wire EDM. I need to adjust size and center pint between different designs of this part. So I am always moving the stand back and forth a little when adjusting. This now keeps me straight and at the same point in the Y plane of this setup.

It has 4 8-32 set screws to lock it in place.