To achieve optimum performance when excavating diaphragm walls using trench cutters, the choice of cutting teeth is of fundamental importance. Okay, you have two choice. The type of tooth or chisel that performs best is governed by soil conditions at the site. There is a range of different types of cutting teeth and round shank chisels available to suit local conditions. When soil conditions change over the depth of the diaphragm wall, a mix of different cutting teeth or rou