Introduced in 2016, the WG Wall Grinder is now available in two models: the WG 40 for excavators weighing 2.5-7 tons, and the WG 50 for excavators with weights of 6-12 tons. This innovative attachment has been designed to smooth surfaces such as slurry walls and retaining walls, as well as to profile different kinds of surfaces with irregularities or remove bumps after shotcrete application.