I need to add detail to a side wall of a wood part (hard maple) using a 3/16 round lollipop end mill. I've come up with two tool options that will have the needed clearance: A) a 270 degree undercut ball end mill or B) a carbide bur with approx. 277 degrees..

http://www.harveytool.com/ToolTechIn...olNumber=41312
https://www.mcmaster.com/#42955a25/=17t4bub

The speeds and feeds will be be slow since its a finish pass removing at most .015" of material at a time.

The bur is 1/5 the cost - any advice out there? anyone used carbide bur's for milling ?