TWI733729B

A driving tool capable of avoiding blank shot after a predetermined time has elapsed when performing a bump firing and capable of smoothly performing the bump firing is provided. The driving tool includes: an accumulator chamber 19 which accumulates compressed air; a nose section provided on a housing; a cylinder; a trigger; and a push lever provided in the nose section, and when the trigger and the push lever are operated, the compressed air is supplied into the cylinder. The driving tool further includes: a delay valve 26 which prevents the compressed air from being supplied into the cylinder when the push lever is not operated within a predetermined time after the trigger is operated: and a switching valve 27 which supplies the compressed air of the accumulator chamber to the delay valve 26 when the trigger is operated, and discharges the compressed air supplied to the delay valve 26 to an outside of the housing when the push lever is operated within the predetermined time.