Store-bought miter boxes are made to fit saws with kerfs of varying size. But this one-size-fits-all solution can lead to flawed cuts. Instead, you can build your own miter box using some 1 X 3 scrap ...
The miter bar fit perfectly in the T-track slot on the table saw, and a few turns of the roller ball plungers achieved perfect alignment with no play. The 13 positive stops were perfectly accurate, ...