ER16 DIN 6499 (DIN ISO 15488) collets with coolant sealing are designed for precision tool clamping in CNC machining applications where controlled coolant delivery is essential for process stability and machining quality. This ER16 range, with a clamping capacity from 3 to 10 mm, provides an optimal balance between compact size, clamping performance, and accuracy.

The operating principle is based on the standard ER geometry, ensuring uniform elastic clamping along the entire tool shank and consistent force distribution, reducing transmission play. Integrated neoprene inserts within the collet slots ensure effective coolant sealing and direct the coolant exclusively through tools with internal channels, preventing leakage and optimizing lubrication and chip evacuation up to 25 bar.

From a metrological perspective, ER16 sealed collets provide high concentricity, reducing form errors and geometric deviations during machining. Increased clamping stability minimizes vibrations, improving surface finish and extending tool life, especially in high-speed and deep machining operations.

These collets are suitable for milling, drilling, boring, and finishing operations on metallic materials, particularly in applications requiring high precision and internal coolant control. Typical sectors include automotive, precision engineering, and mold manufacturing, where process repeatability, system stability, and geometric accuracy are critical for production efficiency.