Homemade Table Saw - 2: Miter Slots

Where do I find the metal runners for a table saw with 58″ wide slot? I want to build a few jigs for my Craftsman Table Saw and would

Some tablesaw jigs, such as cutoff sleds, ride in the saw's miter slots, and a well-fitting miter bar keeps these jigs accurate

miter slot track miter gauge slot Won't warp, shrink, or swell like wooden runners Adjustment range fits slots measuring - wide

miter slot miter slot With its highly functional design, this aluminum bar is precision machined for a highly accurate fit with minimal movement Options #71518