It is an object of the invention to reduce transmission of an external force caused by run-out of a tool bit to a tool body in a power tool is provided. A representative power tool which performs a predetermined operation by linear motion of a tool bit (119) in its axial direction has a tool body (103), a tool holder (137) that holds the tool bit (119) in its front end region and extends in the axial direction of the tool bit, and an elastic element (155). A rear region of the tool holder (137) opposite from the front end region extends into the tool body (103), and in the extending region, the tool holder (137) is coupled to the tool body (103) such that the tool holder can rotate about a pivot (P) on a z-axis defined by an axis of the tool bit, in directions of y- and x-axes which intersect with the z-axis. The elastic element (155) applies a biasing force to the tool holder (137) in such a manner as to hold the tool holder (137) in a predetermined position or an initial position with respect to the tool body (103).