The special design of the active part with successive flat surfaces creates a structure of multiple edges, resulting in an increased capacity for dental substance reduction without generating heat and excellent removal of tissue debris. ISO: 103 - Maximum Speed: 450,000 rpm - Shape: PEAR Diameter 018 - Shank: TURBINE COARSE S Grain Type: COARSE S - Application: Cavity Preparation - Packaging Quantity: 5 pcs.