The angle of the cutting cups can be increased as the rough corners of the sphere grind off. Both heads are spring loaded, so continuous adjustment is unnecessary. Unit comes complete with the above features, 2 polishing buffs, 2 grit pans, instructions, guarantee, and choice of one pair of cutter cups. Please state cup size when ordering.
Scientific Concrete Polishing uses Ra measurement to properly determine a concrete surface's roughness because it's exactly what Scientific Concrete Polishing is about. The Scientific Concrete Polishing system meets the ST115 Surface Refinement Standard, which determines floor roughness using microinches.