Starrett granite V-blocks are designed for holding and supporting cylindrical pieces during inspection or manufacturing applications. These units have five finished faces with a 90 degree V shape groove on top for proper positioning of round workpieces. They are made of pink granite offering maximum wear resistance, durability, corrosion resistance and high tolerance to temperature fluctuations. Choose from a broad range of these granite V-blocks, available in 6, 15, 48, 160 and 380 lb load capacities.