ER20 7 mm Collet Tool Holder

ER20 7 mm Collet Tool Holder

The ER20 7 mm Collet Tool Holder is a critical interface component for modern CNC machining centers, ensuring high precision and rigidity when securing cutting tools to the spindle. Designed in accordance with EN ISO 15488 standards, this collet utilizes a conical structure that, when tightened with an ER20 collet nut, grips the cylindrical cutting tool with uniform radial force. This mechanism minimizes axial and radial movement, preventing tool runout even at high speeds and feed rates. By reducing vibration and ensuring even load distribution across cutting edges, this collet enhances surface finish, improves dimensional tolerances, and extends tool life.

Constructed from high-carbon alloy tool steel, this collet offers excellent hardness, wear resistance, and elasticity. Precision grinding and specialized heat treatment processes ensure geometric accuracy and superior surface quality. It is fully compatible with standard ER20 collet chucks and nuts, making it easy to integrate into existing CNC systems. The 7 mm clamping diameter is ideal for small-diameter end mills, drills, and reamers.

Key Advantages

• Superior Runout Accuracy: Engineered for high precision, this collet ensures that cutting edges make balanced contact with the workpiece, reducing wear and achieving tighter dimensional tolerances essential for mold making, medical, and aerospace industries.
• Optimized Clamping Force: The flexible segments provide uniform pressure, preventing tool pull-out or slippage under high torque and heavy radial loads, which increases safety and allows for more aggressive cutting parameters.
• Broad Industrial Compatibility: Fully compliant with EN ISO 15488 standards, ensuring seamless integration with global CNC tooling systems.

Mermak CNC: Your Global Partner in Industrial Automation
With 16 years of experience based in our Ankara Uzay Sanayi facility, Mermak provides reliable, high-quality industrial components. We maintain up-to-date stock levels and ensure that all products are ready for immediate dispatch without production delays. We offer careful packaging, professional logistics, and full documentation support for our international clients. We proudly serve customers in the United Kingdom, United States, Canada, Australia, Ireland, New Zealand, South Africa, and across the globe. Upon request, we can provide product videos or factory viewings via WhatsApp. Trust Mermak for precision and reliability in your manufacturing operations.