HIGH-SPEED CUTTING BUR SERIES S, PARALLEL SHAPE, SHORT WITH BEVEL, ROUND, FOR CROWN PREPARATION. ISO: 103 - Maximum Speed: 450,000 rpm - Shape: ROUNDED CYLINDRICAL Diameter 012 - Turbine Shank COARSE S Grain Type: COARSE S - Application: Preparation Carving - Packaging Quantity: 5 pcs.