Seems like all the tools you are trying to use are standard flute tools. Get a reverse flute (down cut) so it stops lifting the material when it cuts. Any lifting tool is going to chatter like crazy and pull the material up high on the cutter until it shock loads the cutter and breaks it.
Something like this: https://www.amazon.com/SpeTool-Cutting-Diameter-Carbide-Carving/dp/B07NVL6KWT/