The invention relates to a coolant distributor (10), comprising a rigid connection unit (17) installed so as to be movable relative to the machine frame and comprising an exchangeable distributor unit (18). The distributor unit (18) can be connected to the connection unit (17) or disconnected from the connection unit by means of a gripper device associated with the machine tool. The connection unit (17) has a connection face, on which at least one supply channel for coolant opens. For contact with the connection face, there is a distributor face on the distributor unit (18), on which distributor face at least one distributor channel opens. The plane in which the connection face extends and the plane in which the distributor face extends are tilted from a connection direction (R) in which the distributor unit (18) is moved in order to make and break the connection. A retaining force can be applied to the distributor unit (18) in the connection direction (R) by means of a locking device in order to retain the distributor unit in the position in which the distributor unit is connected to the connection unit with a specified pressing force between the connection face and the distributor face. A fluid-tight connection between the distributor face and the connection face that is easy to make and break is achieved.