VARIABLE SPEED AND DUST CASSETTE.?USER BENEFITS:Patented adjustable ?Duo? oscillating circuit setting: Can be set depending on the application for fine sanding or high stock removal.Variospeed (V) Electronics for working at customised speeds to suit various application materials.Thumbwheel for speed preselection.Turbo boost: allows additional power reserves to be employed for maximum removal.Power Control System: No scratches when placing the machine directly onto the material at speed.Grip area with non-slip soft-grip surface.Removable side handle.Dust-proof ball bearings for long service life of the machine.Sturdy aluminium die cast bearing housing.Easy to empty textile dust bag for working without extraction facilities.Extraction possibility by means of connecting an all-purpose vacuum cleaner.Multi-hole sanding pad for effective extraction and a longer service life of the sanding medium.