Machining, how to machine the annular groove on the end face? How to choose cutting tools?

First, draw the center line of the annular groove with a sharp knife, and then draw the edge lines of the big excircle and the small excircle as the basic dimensions. According to the drawn line, select the cutter for machining. The feed rate should not be too large, depending on the depth of the annular groove. Be careful that the cutter does not rub against the edge of the annular groove (just choose the alloy knife as the cutter).