Abstract: There is provided an axial vibration tool with a flow control element, a rotary motor that provides an actuation force to the flow control element, a first flow path with at least a portion in fluid communication with the rotary motor and providing fluid to drive the rotary motor. A shock tool is carried by the outer housing and generates an oscillating force based on fluid pressure applied to an activation element. A high pressure flow path is between a source of high pressure fluid and the activation element, and a low pressure flow path is between a source of low pressure fluid and the activation element. The low pressure fluid source has a lower pressure than the high pressure fluid source. The flow control element controls flow through at least the high pressure path by applying pressure fluctuations to the activation element when actuated by the rotary motor.