To provide a screwdriver tool, capable of removing dust when clogged in an engagement groove for engaging an engagement part of the screwdriver tool, which is formed on the head of a male screw, and also capable of reproducing the engagement groove if collapsed.

The screwdriver tool is provided with the engagement part for engaging in the engagement groove formed on the head of the male screw. The screwdriver tool includes: an operation shaft unit with the engagement part for engaging in the engagement groove; a gripper for slidably housing the operation shaft unit in an axial direction; and a pressing unit for pressing the operation shaft unit housed in the gripper toward the side of the engagement part.