A multi-speed power tool, comprising: a housing; a motor received in the housing; a multi-speed planetary transmission rotationally driven by the motor and defining a transmission axis, wherein the multi-speed transmission includes a plurality of subsections (200A, 200B, 200C), each of the plurality of subsections being configured to produce a corresponding speed reduction; an output mechanism rotationally driven by the transmission; and a speed selector moveable among a plurality of positions in which the speed selector engages one or more of the plurality of subsections (200A, 200B, 200C) of the transmission so as to cause the transmission to rotate the output mechanism at a plurality of different output speeds, wherein the speed selector comprises: a switch that is accessible from an outside of the housing, and that is movable within an opening formed in the housing; and at least one shift rail having a first end portion fixed to the switch and a second end portion fixed to a shift ring (410; 410A) that selectively engages one of the plurality of subsections (200A, 200B, 200C) of the transmission, characterised in that the switch includes: a base portion having a first side portion coupled to the at least one shift rail; a shutter slidably coupled on a second side portion of the base portion, opposite the first side portion thereof; and a button portion extending from the base portion through an opening formed in the shutter, wherein the button portion is movable to a plurality of different positions between a first end of the opening in the housing and a second end of the opening in the housing, the plurality of different positions corresponding to a plurality of different axial positions of the shift ring (410; 410A) with respect to the transmission. a housing; a motor received in the housing; a multi-speed planetary transmission rotationally driven by the motor and defining a transmission axis, wherein the multi-speed transmission includes a plurality of subsections (200A, 200B, 200C), each of the plurality of subsections being configured to produce a corresponding speed reduction; an output mechanism rotationally driven by the transmission; and a speed selector moveable among a plurality of positions in which the speed selector engages one or more of the plurality of subsections (200A, 200B, 200C) of the transmission so as to cause the transmission to rotate the output mechanism at a plurality of different output speeds, wherein the speed selector comprises: a switch that is accessible from an outside of the housing, and that is movable within an opening formed in the housing; and at least one shift rail having a first end portion fixed to the switch and a second end portion fixed to a shift ring (410; 410A) that selectively engages one of the plurality of subsections (200A, 200B, 200C) of the transmission, a switch that is accessible from an outside of the housing, and that is movable within an opening formed in the housing; and at least one shift rail having a first end portion fixed to the switch and a second end portion fixed to a shift ring (410; 410A) that selectively engages one of the plurality of subsections (200A, 200B, 200C) of the transmission, characterised in that the switch includes: a base portion having a first side portion coupled to the at least one shift rail; a shutter slidably coupled on a second side portion of the base portion, opposite the first side portion thereof; and a button portion extending from the base portion through an opening formed in the shutter, wherein the button portion is movable to a plurality of different positions between a first end of the opening in the housing and a second end of the opening in the housing, the plurality of different positions corresponding to a plurality of different axial positions of the shift ring (410; 410A) with respect to the transmission. a base portion having a first side portion coupled to the at least one shift rail; a shutter slidably coupled on a second side portion of the base portion, opposite the first side portion thereof; and a button portion extending from the base portion through an opening formed in the shutter, wherein the button portion is movable to a plurality of different positions between a first end of the opening in the housing and a second end of the opening in the housing, the plurality of different positions corresponding to a plurality of different axial positions of the shift ring (410; 410A) with respect to the transmission.