Attachment-type aligning device and electric power tool

Abstract

An attachment-type aligning device is capable of aligning a base shaft held by a base shaft holder to prevent a vibration of a rotary jig during a rotation thereof, and an electric screwdriver including such a base shaft holder having the attachment-type aligning device attached thereto. An alignment adaptor includes an alignment bearing contacting and aligning a base shaft, of a rotary jig, extending through a through-hole; and an attachment unit attaching the attachment bearing to a predetermined position in a holder body included in a base shaft holder allowing the base shaft to be inserted thereto from an axial-direction tip side and holding the base shaft. The alignment adaptor aligns the base shaft attached to, and held by, the base shaft holder.

Dependencies are inferred from the claim text.