S3 should be there already, so come only the torque-consuming cross-cut in question. A professional device is large and the costs are hardly in again. My experience and that of my colleagues with low-cost devices are disastrous. Because of the reviews here I dared again. In fact, I think some quality descriptive details on this page for a little excessive. But it seems at least to be so that this device is continuous operation, provided you do not use the capacity specified by the manufacturer constantly until it stops from. Conclusion: No bad buy. In the class below 200, - EUR, the best I know of device.
