In a CNC machine tool many litres of coolant/oil are used in order to cool the cutting tool during the process. This “liquid” is expensive and has to be re-used. Thanks to the OIL series, this job can be done in a very short time. The swarf is retained into a basket and just the “liquids” fall down into the main tank where an electrical liquid cut-out will stop the motor when the maximum level is reached. Then thanks to the gun the coolant is re-ejected into the machine tool for re-using. This operation can be done while sucking the material and has a great advantage in terms of money as the oil/coolant keeps its property assuring perfect workmanship.