I’m considering building a drill press table for my drill press as I just don’t like any tables I see online and I see a lot of nice home made drill press tables using t-track for the fence to slide on. Most channels for t-track are made with dado blades on a table saw, but I don’t really want to spend that kind of money for a dado blade set for a most likely one time use. I see people talk about cutting the channels with a router bit. I know very little about router bits. Dimensions would be 3/8" deep by 3/4" wide with straight walls. What kind of router bit would I use for this?