Werkmaster is a pioneer in 8 head design surface preparation and polishing equipment. Â With their patent Octi Head technology, Werkmaster grinders get more diamonds on the surface which allow contractors to be more productive. Â Chose from a selection of machines from hand held grinders to the heavy duty “Colossos XT”. Â Werkmaster also has tooling to support all applications from refinishing hardwood to polished concrete. Â 1 machine multiple applications.