If you are using a T profile you will need one of these. I ordered both sizes plus mandrels for each. They cleanly cut through about 80 linear feet of MDF. They are high quality and you can't beat the price.
Olson 80 Inch Blade FB14580DB-025
10 Review
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review