The Omega DV40 Hydraulic Expansion Chuck HC20S (Fig.2) is a DIN69871‑compatible tool holder designed for reliable performance on a wide range of CNC machining centers. With a maximum speed of 25,000 RPM, it delivers fast, secure tool clamping for demanding milling operations.

The hydraulic expansion mechanism clamps cutting tools quickly and precisely, expanding evenly to grip securely. This provides excellent stability and vibration damping during high‑speed machining, helping you achieve superior surface finishes, tighter dimensional accuracy, and longer tool life.

• Smooth, even hydraulic expansion: The hydraulic clamping action distributes gripping force uniformly around the tool for fast, repeatable, low‑runout tool retention at high speeds.
• DIN69871 compatibility: Designed to fit a broad range of machining centers and tool holders, enabling straightforward integration and consistent performance across compatible equipment.
• High‑speed stability and vibration damping: Engineered for up to 25,000 RPM, maintaining rigid grip to reduce chatter, improve surface finish, and extend tool life in demanding applications.

In daily use, the DV40 HC20S simplifies tool changes, delivers repeatable clamping, and supports precise, stable machining. Its hydraulic expansion provides a reliable grip that minimizes runout and vibration, translating to better part quality, reduced downtime, and a more efficient workflow across production runs.