USER BENEFITS:Microprocessor control: speed selection, tachogenerator constant speed control, soft start, restart protection after power failure, overload protection and temperature monitoring.Unique tool attachment with quick-action coupling for tool-free changing of the system attachments for burnishing and pipe belt sanding.Variably adjustable burnishing attachment, allows working close up to the edge, also suitable for narrow rollers, incl. edge guide.Tool-free grinding tool change via a patented quick-change system.Completely cast electronic components prevents damage due to metal dust. The 3-fold winding protection reduces motor wear, increases service life.Adjustable guard: for sanding tools up to ? 125 mm.Spindle lock.For optimum finishing of various materials, for burnishing, texturing, polishing, brushing, smoothing, de-rusting and deburring steel and stainless steel surfaces.