Like so many others we tried before various other devices, are joined up on this. Even very strong cornea can thus be removed quickly and very professionally. Finally something behind this really suitable and works. As very pleasant we found, that in comparison to other devices High speed of rotation is possible. It does not stop (as is usual at others) and also runs much longer before it gets warm. Another positive aspect is that the control is carried out on the base unit. The cables are long enough to use the device comfortably. Note: For very strong cornea some dust is whirled. But it is not bad and a sign that it really works We would order this device at any time.