A range of power tools comprising at least two power tools, each power tool comprising: a motor housing and a transmission housing; an electric motor mounted within the motor housing; a transmission mechanism mounted within the transmission housing which uses the rotary output of the motor to drive a cutting tool; an intermediate housing is sandwiched between the motor housing and the transmission housing, wherein: the motor housing of each power tool is the same in shape as the motor housing in every other power tool in the range, so that the shape of the motor housing in every power tool is identical, and the length of the electric motors in each of the power tool is different to the length of the electric motors in the other power tools in the range; wherein the position of the transmission housing relative to the motor housing in each power tool is different to every other power tool in the range in order to accommodate the difference in length in the electric motor in that power tool, the shape of the intermediate housing in each power tool varying relative to the other intermediate housings to accommodate the difference positions of the transmission housings relative to the motor housings; wherein, in at least one of the power tools in the range, the motor housing is connected to the transmission housing via the intermediate housing to enable the transmission housing to be moved forward relative to the motor housing; wherein, in the at least one power tool, the intermediate housing forms part of an external wall (90, 92, 108, 110) of the housing of the at least one power tool between the motor housing and the transmission housing; charcterised in that the lengths of all of the intermediate housings are substantially the same, and wherein the length of the external wall (90, 92, 108, 110) increases over the range in proportion with the increase in the length of the motor over the range. a motor housing and a transmission housing; an electric motor mounted within the motor housing; a transmission mechanism mounted within the transmission housing which uses the rotary output of the motor to drive a cutting tool; an intermediate housing is sandwiched between the motor housing and the transmission housing, wherein: the motor housing of each power tool is the same in shape as the motor housing in every other power tool in the range, so that the shape of the motor housing in every power tool is identical, and the length of the electric motors in each of the power tool is different to the length of the electric motors in the other power tools in the range; wherein the position of the transmission housing relative to the motor housing in each power tool is different to every other power tool in the range in order to accommodate the difference in length in the electric motor in that power tool, the shape of the intermediate housing in each power tool varying relative to the other intermediate housings to accommodate the difference positions of the transmission housings relative to the motor housings; wherein, in at least one of the power tools in the range, the motor housing is connected to the transmission housing via the intermediate housing to enable the transmission housing to be moved forward relative to the motor housing; wherein, in the at least one power tool, the intermediate housing forms part of an external wall (90, 92, 108, 110) of the housing of the at least one power tool between the motor housing and the transmission housing; charcterised in that the lengths of all of the intermediate housings are substantially the same, and wherein the length of the external wall (90, 92, 108, 110) increases over the range in proportion with the increase in the length of the motor over the range. the motor housing of each power tool is the same in shape as the motor housing in every other power tool in the range, so that the shape of the motor housing in every power tool is identical, and the length of the electric motors in each of the power tool is different to the length of the electric motors in the other power tools in the range; wherein the position of the transmission housing relative to the motor housing in each power tool is different to every other power tool in the range in order to accommodate the difference in length in the electric motor in that power tool, the shape of the intermediate housing in each power tool varying relative to the other intermediate housings to accommodate the difference positions of the transmission housings relative to the motor housings; wherein, in at least one of the power tools in the range, the motor housing is connected to the transmission housing via the intermediate housing to enable the transmission housing to be moved forward relative to the motor housing; wherein, in the at least one power tool, the intermediate housing forms part of an external wall (90, 92, 108, 110) of the housing of the at least one power tool between the motor housing and the transmission housing; charcterised in that the lengths of all of the intermediate housings are substantially the same, and wherein the length of the external wall (90, 92, 108, 110) increases over the range in proportion with the increase in the length of the motor over the range.