Parkside PDOS 200 A1 Information The Parkside PDOS 200 A1 is a double bench grinder that is perfect for a variety of grinding and polishing tasks. It features two 150 mm (6") grinding wheels, one coarse and one fine, that can be used to grind, sharpen, polish, and deburr a wide range of materials. The grinder also has a variable speed control that allows you to adjust the speed of the wheels from 500 to 3,000 RPM, giving you precise control over the grinding process. Introduction The Parkside PDOS 200 A1 is a powerful and versatile bench grinder that is perfect for a variety of tasks. It is easy to use and maintain, and it comes with a number of features that make it a great value for the price.