A fastening tool including a bit holding unit configured to hold a driver bit so as to be rotatable and to be movable in an axis direction, a first drive unit having a first motor configured to rotate the driver bit held by the bit holding unit, and a second drive unit having a second motor configured to move the driver bit held by the bit holding unit along the axis direction.

A fastening tool includes: a cylindrical rotation guide member extending in one direction and rotatably supported; a holding member having an opening in which a driver bit is detachably inserted, and configured to move in an axis direction along the extension direction of the rotation guide member inside the rotation guide member and to rotate together with the rotation guide member; and a moving member configured to move the holding member in a front and rear direction along the rotation guide member; a rotation member; and a transmission member connected to the moving member and having flexibility to be wound along an outer periphery of the rotation member. The rotation member is rotated by the motor, so that the moving member is moved with the transmission member in one direction in which a screw engaged with the driver bit is pressed against a fastening target.

A fastening tool includes: a screw accommodating unit configured to accommodate therein a screw; and a screw feeding unit configured to feed the screw accommodated in the screw accommodating unit to an ejection passage through which a driver bit is to pass. The screw feeding unit includes: a screw feeding motor, an engaging part configured to engage with the screw, and a screw feeding transmission part configured to transmit a drive force of the screw feeding motor to the engaging part.