The 400 grit diamond surface produces a fine, consistent finish. Versatile and flexible for finishing and dimensioning flat and contoured surfaces, also for hard to reach areas. Rigid enough to remove material at a high rate and flexible enough to follow difficult geometries easily. Suitable for a variety of hard-to-grind materials including : Tungsten Carbide, Chrome Carbide, Thermal Sprays, Yttria-Stabilized Zirconia (YSZ), Alumina Ceramics, Granite, Marble, Glass, and other hard materials.