This grinding segment is designed for achieving precise dimensions on refractory products like firebricks and kiln furniture. It is used in the multi-segment chucks of large surface grinders (including Wassmer, Blanchard, and Mattison models). The segment's vitrified bond is formulated to wear at a controlled rate on hard refractory materials, which prevents glazing and maintains a high stock removal rate. It is ideal for operations requiring perfectly flat and parallel surfaces for furnace assembly.