A power tool having a cooling system, comprises: a motor housing 11 having a main chamber 14 accommodating a tool motor 12; a handle 15 for holding the power tool and having a cooling passage 16 for the transfer of cooling fluid, at least one inlet 18 leading to the cooling passage and at least one outlet 13 leading away from the cooling passage 18 , and a power tool component 21 which generates heat disposed in thermal contact with the cooling passage 16 between the inlet 18 and the outlet 13.