A hand-held power tool comprising: a housing supporting a motive source; wherein the housing includes a front endbell; an output shaft protruding from an output end at the front endbell of the housing; wherein the output shaft is coupled to the motive source such that the output shaft rotates in response to activation of the motive source when the motive source is supplied with power; a front housing defining an interior space; wherein the output shaft is located in the interior space of the front housing; and a gear set assembly located in the interior space of the front housing; wherein the gear set assembly is configured to transfer rotation from the output shaft to an output spindle; wherein the gear set assembly includes a ring gear, the ring gear comprising an annular ring body having a plurality of teeth located on an interior periphery of the annular ring body and a surface located on an exterior periphery of the annular ring body opposite the interior periphery; wherein the ring gear surrounds a portion of the output shaft and abuts the front endbell of the housing; and wherein the ring gear and the front endbell of the housing are insert molded together such that the ring gear is restrained against both axial and rotational movement relative to the front endbell; characterised in that the front housing is coupled to the ring gear and the front endbell; the front housing includes a tapered section coupled to an inner surface of the housing; and the front housing includes a flange coupled to the surface located on the exterior periphery of the annular ring body opposite the interior periphery thereof, wherein the flange is configured to operatively couple to the outer surfaces (322, 328) of the ring gear. a housing supporting a motive source; wherein the housing includes a front endbell; an output shaft protruding from an output end at the front endbell of the housing; wherein the output shaft is coupled to the motive source such that the output shaft rotates in response to activation of the motive source when the motive source is supplied with power; a front housing defining an interior space; wherein the output shaft is located in the interior space of the front housing; and a gear set assembly located in the interior space of the front housing; wherein the gear set assembly is configured to transfer rotation from the output shaft to an output spindle; wherein the gear set assembly includes a ring gear, the ring gear comprising an annular ring body having a plurality of teeth located on an interior periphery of the annular ring body and a surface located on an exterior periphery of the annular ring body opposite the interior periphery; wherein the ring gear surrounds a portion of the output shaft and abuts the front endbell of the housing; and wherein the ring gear and the front endbell of the housing are insert molded together such that the ring gear is restrained against both axial and rotational movement relative to the front endbell; characterised in that the front housing is coupled to the ring gear and the front endbell; the front housing includes a tapered section coupled to an inner surface of the housing; and the front housing includes a flange coupled to the surface located on the exterior periphery of the annular ring body opposite the interior periphery thereof, wherein the flange is configured to operatively couple to the outer surfaces (322, 328) of the ring gear.