A power tool system comprising: a plurality of tool devices (10, 11, 12, 20), wherein each of the tool devices (10, 11, 12, 20) includes a condition detection unit (11e, 12d, 24) that detects condition information of the tool device (10, 11, 12, 20), and a communication unit (11d, 12c, 23) capable of performing bidirectional wireless communication with a further one of the tool devices (10, 11, 12, 20), wherein the communication unit (11d, 12c, 23) is configured to obtain the condition information of the tool device (10, 11, 12, 20) from the condition detection unit (11e, 12d, 24) and transmit the obtained condition information of the tool device (10, 11, 12, 20) to the further one of the tool devices (10, 11, 12, 20); at least one mobile terminal (SP, MT) having a communication protocol that is the same as those of the tool devices (10, 11, 12, 20), wherein the communication unit (11d, 12c, 23) of each of the tool devices (10, 11, 12, 20) is configured to perform communication with the at least one mobile terminal (SP, MT); and wherein when receiving the condition information of the tool device (10, 11, 12, 20) transmitted from the further one of the tool devices (10, 11, 12, 20), the communication unit (11d, 12c, 23) of each of the tool devices (10, 11, 12, 20) is configured to transmit, to another one of the tool devices (10, 11, 12, 20) and the mobile terminal (SP, MT) that are capable of performing communication with the tool device, the received condition information of the tool device and the condition information of the tool device obtained from the condition detection unit (11e, 12d, 23). a plurality of tool devices (10, 11, 12, 20), wherein each of the tool devices (10, 11, 12, 20) includes a condition detection unit (11e, 12d, 24) that detects condition information of the tool device (10, 11, 12, 20), and a communication unit (11d, 12c, 23) capable of performing bidirectional wireless communication with a further one of the tool devices (10, 11, 12, 20), wherein the communication unit (11d, 12c, 23) is configured to obtain the condition information of the tool device (10, 11, 12, 20) from the condition detection unit (11e, 12d, 24) and transmit the obtained condition information of the tool device (10, 11, 12, 20) to the further one of the tool devices (10, 11, 12, 20); at least one mobile terminal (SP, MT) having a communication protocol that is the same as those of the tool devices (10, 11, 12, 20), wherein the communication unit (11d, 12c, 23) of each of the tool devices (10, 11, 12, 20) is configured to perform communication with the at least one mobile terminal (SP, MT); and wherein when receiving the condition information of the tool device (10, 11, 12, 20) transmitted from the further one of the tool devices (10, 11, 12, 20), the communication unit (11d, 12c, 23) of each of the tool devices (10, 11, 12, 20) is configured to transmit, to another one of the tool devices (10, 11, 12, 20) and the mobile terminal (SP, MT) that are capable of performing communication with the tool device, the received condition information of the tool device and the condition information of the tool device obtained from the condition detection unit (11e, 12d, 23).