Abstract: A screwdriver with a ratcheting mechanism permitting the direction in which driving force is applied to be selected by the operation of a selector ring (32) which is rotated in the same direction as that in which driving force is applied. Two pawls (36A, 36B) are movable between an engagement position in which the pawl engages a ratchet gear (26) to prevent rotation of the ratchet gear in one direction and a non-engagement position. A pawl-pushing member (50) is movable between a first position in which one pawl is in its engagement position, a second position in which the other pawl is in its engagement position, and a third position in which both pawls are in their engagement position. A pivoting member (52) moves the pawl-pushing member between its first position, its second position and its third position. The selector ring (32) pivots the pivoting member.