Router table miter slot, who uses them?

CarAngels 70mm Standard Aluminum Miter Track T-Slot Rail for miter slot track What is needed is a T - track that can slide in the SS mitre groove and a few T-track clamps You put the t-track in the miter groove clamp you board so the miter slot bar tracks Slot Miter Track Alloy Bar Slider Table Saw Woodworking Tools Brand, BESPOTT Country of Origin, This item will be import from US Date First Available

miter slot Rockler 36'' Miter Track - Miter Slot Fits 1 x 12 Deep Dado & Accepts a Standard 34 x 38 Miter Bar