Wall chaser Sparky FK 6522 Perfect for efficient cutting of deep and wide channels in concrete walls and floors Powerful, high reliability electric motor with improved ventilation Coated rotor and stator for efficient dust protection Protection basket for rotor winding against sharp grinding dust Dust sealed spindle and bearings Efficient dust extraction in connection with vacuum cleaner Aluminium disc guard with support rollers Adjustable depth of cut Stage adjustment of groove width using thrust washers Spindle lock button for disc replacement Safety switch to prevent accidental switching on, lock-on function and switching off New design of the gear box made by light and strong magnesium alloy Quick-release disc guard Safety restart cut out Auto-stop brushes Ergonomic soft-grip rear handle Double insulation