The special design of the active part with successive flat surfaces creates a structure of multiple edges that increases the capacity for dental substance reduction without generating heat and ensures excellent removal of tissue remnants. ISO: 103 - Maximum Speed: 160,000 rpm - Shape: ROUND CYLINDRICAL Diameter 012 - Shank TURBINE COARSE S Grain Type: COARSE S - Application: Preparation Carving - Packaging Quantity: 5 pcs.