IMPACT ROTARY TOOL, MANAGEMENT SYSTEM, AND IMPACT ROTARY TOOL SYSTEM

A problem addressed by the present disclosure is to detect a seating of a fastener component at a timing approximated to a timing intended by a user. An impact rotary tool (1) includes a motor (2), an output shaft, an impact mechanism, and a seating detector (145). The output shaft is configured to hold a tip tool and configured to rotate by a motive power of the motor (2). The impact mechanism is configured to perform an impact operation to repeatedly generate, from the motive power of the motor (2), impact force acting on the output shaft (8). The seating detector (145) is configured to detect a seating of a fastener component. The seating of the fastener component is a state where the fastener component rotated by the tip tool is just seated on a work target. The seating detector (145) has a plurality of seating detection modes. The impact rotary tool (1) further includes an acquirer (146) configured to acquire information indicative of one seating detection mode selected from the plurality of seating detection modes. The seating detector (145) is configured to detect the seating of the fastener component based on the one seating detection mode indicated by the information acquired by the acquirer (146).