DEDRA flexible diamond polishing wheel with a diameter of 150 mm is designed for dry polishing of natural stone surfaces such as. granite or marble and polishing concrete. The diameter of the central hole is 17.5 mm. The wheel is designed for use with the angle grinder together with the drift wheel. With its help, you can easily achieve the removal of scratches and various surface damages. The 50 grit wheel is designed for the initial coarsest polishing of surfaces at a maximum speed of 3000 rpm.