To fix the cleats in the right position on the shoe. Three reference points help in this operation. The tool can be clamped in a vice. Features a millimetric precision ruler.
Start placing the shoe under the tool, screwing it lightly. Then align the lower part of the cleat to the zero reference, and fix it with the help of the millimetric ruler. Then proceeds by aligning the cleat also horizontally. Finally, with the rear marker, check the shoe alignment, avoiding to miss the center line.