300°

Often referred to as "Lollipop Cutters," Undercutting End Mills are a great tool for multi-axis machining applications.

https://harveyperformance.widen.net/content/lkoyt7q0kp/png/Harvey_SpecialityProfiles_UndercuttingEndMills_300_lg.tif?position=c&color=ffffff00&quality=80&u=rghc4j