The Omega DV40 End Mill Holder is a precision toolholder designed to securely mount end mills with a 6 mm bore while accommodating a range of diameters and shank sizes. Ideal for both professional shops and serious hobbyists, it provides reliable toolholding for roughing or finishing milling tasks, featuring a 50 mm gauge length, Form AD/B compatibility, and high-speed performance up to 25,000 RPM balanced to G2.5/G6.3 to minimize vibration. 50 mm Gauge Length for Stable Engagement: The longer gauge length enhances rigidity and concentricity, helping you achieve consistent, accurate cuts across multiple end mill sizes. High-Speed Balanced Performance: With a 15,000–25,000 RPM range and balance grades G2.5/G6.3, it minimizes chatter and supports smooth, reliable finishes and longer tool life. Secure Clamping and Form AD/B Compatibility: Precision clamping keeps the end mill firmly in place, reducing slip and enabling repeatable results in both roughing and finishing tasks. Using the DV40 holder translates to faster setups, fewer tool changes, and more predictable outcomes. Its robust construction and precise design deliver reliable performance day after day, helping you maintain accuracy, achieve smoother surface finishes, and improve overall milling efficiency across a wide range of materials and applications.