As the Bridgeport CNC is up and we are getting the Tormach here is a great series of videos.
This is from NYC CNC, he knows his stuff.
Words of warning:
1. CNC router feed rates are DIFFERENT!!! But some of the concepts are similar.
2. DONT run too slow!!! You are not “babying” the tool or “making your tools last longer” by running slow, what happens is your not taking enough of a cut and your just rubbing generating heat, it will cut fine for a little while then your tool is shot.
Here is the excel spreadsheet he recommends. Its free to download despite being on Patreon.
I like the prices of HTC Tool over Lakeshore Carbide (same company I recommend using for the router.)