Small Tooth Knife

The cutter bit is mainly used to cut soft working surfaces and collect slag and stones into the mud bin. It is generally applicable to loose formations such as silt, fine silty sand, clay, medium sand, coarse-grained sand and gravel-containing sand layers. Cutter bits are usually installed at the openings of the cutter head and used to excavate most of the cross-section. When the shield machine goes forward, the cutter bits rotates with the cutter head and moves forward slowly. It drives the blade into the soil through rotational movement and collects the soil into the opening of the cutter head.