ER16 8 mm Collet Tool Holder
The ER16 8 mm collet is a critical interface component for modern CNC machining centers, designed to provide high-precision and repeatable clamping for cutting tools such as end mills, drills, and reamers. This collet acts as a vital link in the kinematic chain between the machine spindle and the cutting tool, directly influencing machining accuracy and surface quality.
The conical geometry of the ER-type collet converts the axial clamping force applied by the collet nut into a radial force, gripping the tool shank evenly and securely. This mechanism minimizes dynamic runout (TIR), prevents axial or radial slippage during high-speed operations, and enhances vibration damping. It is an essential requirement for micro-machining and high-precision applications where tight tolerances are mandatory.
Key Advantages
- High Precision: Engineered for minimal runout, ensuring the cutting edge maintains balanced contact with the workpiece, which extends tool life and improves surface finish (Ra, Rz values).
- Operational Flexibility: Compatible with standard ER16 systems, making it suitable for milling, turning, drilling, and reaming across industries such as automotive, aerospace, and medical manufacturing.
- Optimized Torque Transfer: Provides excellent resistance against high torque and cutting forces, preventing tool pull-out and allowing for optimized feed and speed parameters.
Mermak CNC Expertise: With 16 years of experience, Mermak provides high-quality industrial components from our Ankara Uzay Sanayi facility. We serve customers in the United Kingdom, United States, Canada, Australia, New Zealand, and international markets with reliable logistics and careful packaging. Our stock levels are kept up to date, and we ensure prompt processing for all orders. We are available via WhatsApp or contact channels for product videos or factory viewing upon request.
Technical Specifications
- Collet Type: ER16 (DIN 6499)
- Clamping Diameter: 8 mm
- Material: High-grade alloy tool steel, heat-treated for optimal elasticity and wear resistance.






































































































































































































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