The ER16 standard collet, class 1 for metric bores according to DIN ISO 15488 (DIN 6499) is a fundamental component in precision tool clamping systems used on CNC machining centers, automatic lathes and high-precision collet chucks. It is designed to ensure extremely stable and accurate clamping of cylindrical shank tools, providing high concentricity and repeatability during milling, drilling, boring and high-speed machining operations.

The collet structure features 16 longitudinal slots, allowing uniform elastic deformation during tightening inside the clamping nut. This design enables the collet to adapt perfectly to the tool diameter while distributing clamping forces evenly along the entire contact surface. As a result, the tool is held securely with reduced vibration and improved stability even at high spindle speeds.

With a runout accuracy up to 0.008 mm, this ER16 collet is particularly suitable for precision machining applications in industries such as automotive manufacturing, precision mechanics, mold production and general industrial component manufacturing. The high-quality surface finishing, with roughness Rz 1.6, improves the contact interface between tool and collet, reducing the risk of slippage while maximizing clamping efficiency.

The 8° taper angle (α) ensures perfect compatibility with standard ER collet holders. This geometry allows optimal force transmission during tightening via the clamping nut while ensuring quick and reliable tool changes during machine setup.

The ER16 collet provides a progressive clamping range, allowing coverage of multiple tool diameters through precise metric increments. This flexibility reduces the total number of collets required in the workshop tool inventory and improves operational efficiency.

Thanks to the combination of high precision manufacturing, optimized geometry and heat-treated materials designed for wear resistance and durability, the ER16 collet is a reliable solution for tool clamping in modern machining environments. It is widely used in industrial production departments where reliability, precision and repeatability are essential to maintain high manufacturing quality standards.

For machinists, process engineers and CNC technicians, the ER16 clamping collet represents an essential element of the tooling system, contributing directly to machining accuracy, tool stability and consistent production performance.