In primary school Chinese written after the 1980s, the radical "oblique knife head" is called.
The list of commonly used radical names in primary school Chinese curriculum standards is ***64: Li Dao Bean, Shanren Bean, Bazitou, Herringbone, Oblique Daotou, Baozi, Beijing, Tu Baogai et al.
The characters with the radical Xiandaotou include Qian, Er, negative, color, turtle, free, horn, moxibustion, fish, rabbit, urgent, wrinkle, Xiang, Lu, etc.