- Working part material (ISO): 500. - Tungsten carbide. - Shank type and overall length (ISO): 204 - RA. - Contra-angle. - Length: 22 mm. - Diameter: Ø 2.35 mm. - Nominal size. - The largest diameter of the working part (ISO): 012 - Ø12 (1/10mm). **For further product information, please contact Chat Support**