Abstract: Operation angles of a drill are influenced by variation of parameters of the axial vibration drilling.As the tool is cutting intermittently, the start and end points are first determined.The working rank angle and back angle of the tool during cutting are calculated.Using the metal cutting theory, cutting parameters are analyzed, and parameters of vibrating drill given.This opens a new way for studying the mechanism of vibrating drill and selecting parameters.

Key words: parameters selected, operation angle, vibration drilling