The first step is a soft start. Without it, too sharp start and strong vibration at start. Secondly, the sliding cover is removed, because this element is designed very badly. Further empirically chose a normal abrasive disc. Of the options presented (Tsunami, Topcut, Stanley, Interskol), Interskol won. The rest either gave a beating or melted the metal. The notches on the angle adjustment mean nothing. Set only on a square or on a template of an angle. The clamping mechanism also needs to be replaced. Small parts can still be pressed for cutting at 90 degrees, but a large profile (square 100 mm) at 45 shifts to a different angle when pressed. Yes, and the saw is not physically capable of sawing 100 squares at 45 degrees. First, the casing will interfere, then the disk will rest against the workpiece with a fixing washer, about 2 cm short. In general, the purchase is satisfied. Much better than grinder