Patent 11073203 was granted and assigned to Makita on July, 2021 by the United States Patent and Trademark Office.
A spindle is radially and axially compact. An impact wrench includes a motor, a sun gear rotatable by the motor, a planetary gear meshing with the sun gear, an internal gear meshing with the planetary gear, a gear case holding the internal gear, a spindle holding the planetary gear, and a first bearing located between the gear case and the spindle, and supporting the spindle on an outer circumference and the gear case on an inner circumference.