ER20 9 mm Collet Tool Holder

ER20 9 mm Collet Tool Holder

The ER20 9 mm Collet is a critical interface component designed for the secure, precise, and repeatable clamping of cutting tools within the spindles of modern machining centers. By optimizing coaxial alignment between the tool axis and the spindle axis, this collet minimizes radial and axial runout during operation. Its conical geometry and flexible clamping range allow it to securely grip 9 mm nominal diameter tools, such as drills, end mills, and reamers, with uniform clamping force. This mechanical connection ensures tool stability at high speeds, dampens vibrations, and balances load distribution on cutting edges, thereby extending tool life and improving surface finish quality.

Technical Specifications and Compatibility

The ER (Erickson Rego-Fix) standard is one of the most widely recognized collet systems in industrial automation and machining. When tightened with a collet nut, the conical outer surface of the collet makes full contact with the internal taper of the holder, ensuring precise centering. This collet is designed to hold tools with diameters ranging from 8.5 mm to 9.0 mm. Manufactured from high-carbon alloy tool steel and subjected to controlled heat treatment, it achieves a surface hardness of HRC 58-62, ensuring high resistance to wear, deformation, and fatigue.

Key Advantages

• Micron-Level Runout Control: Engineered for high precision, this collet minimizes runout to ensure each cutting edge removes material evenly, resulting in superior surface finish and geometric accuracy.
• Optimized Clamping Range: The 0.5 mm effective clamping range allows for secure gripping of tools between 8.5 mm and 9.0 mm, providing versatility for various tool tolerances.
• Operational Stability: The robust construction ensures the tool remains stable under high-speed conditions, preventing slippage and enhancing overall machining safety.

Mermak: Your Reliable Partner in Industrial Supplies

With 16 years of experience, Mermak operates from its factory and warehouse in the Ankara Space and Aerospace Industrial Zone. We provide high-quality industrial components to customers in the United Kingdom, United States, Canada, Australia, New Zealand, South Africa, and other international markets. Our website reflects real-time stock levels and current pricing. Products are dispatched directly from our warehouse without production delays. We ensure careful packaging, professional logistics, and full documentation support. For international buyers, we offer product verification via video calls or WhatsApp upon request.