The Extreme CG grinding cup ensures a very high removal rate, extreme comfort of work without vibration and self-sharpening feature. These new i-HD cups offer you the BEST FINISHING and LONGEST LIFE even in abrasive materials. The ‘flat’ version in 125mm is suitable on all vacuum grinders. Application: surfacing of construction and building materials with the best finish (concrete, reinforced concrete, natural stone, abrasive materials). User: tilers, general builders, concrete flooring contractors, swimming pool installers.