Internal Coolant Optimization (Sealed Design)
Unlike standard ER collets, the ERC series utilizes a specialized groove sealing technology. This ensures coolant is directed exclusively through the central water hole of the cutting tool, preventing pressure loss through collet slits. Rated for high-pressure coolant systems up to 7MPa, making it ideal for deep-hole drilling and high-speed milling.Premium Material & Heat Treatment
Manufactured from high-quality 65Mn Spring Steel. Through advanced cryogenic treatment and thermal aging, the collet achieves a stable hardness of HRC 44-48. This balance ensures excellent elasticity, high fatigue resistance, and consistent clamping force over long-term use.High Precision Runout (T.I.R.)
Precision-ground to meet strict tolerance standards with a Total Indicator Runout (T.I.R.) of ≤ 0.008mm. This high concentricity minimizes vibration during machining, significantly extending the life of carbide tools and improving workpiece surface finish.Versatile Compatibility & Customization
Compatible with all standard ER collet chucks (DIN 6499/ISO 15488). We offer customization for non-standard hole sizes and specific standards (ISO, JIS, DIN) to meet unique machining requirements.


Application Scenarios
Machine Types: CNC Machining Centers (VMC/HMC), CNC Lathes with live tooling, and High-Precision Drilling/Tapping Centers.
Processing Fields:
Deep Hole Drilling: Essential for evacuating chips from deep bores using high-pressure internal coolant.
High-Speed Milling: Prevents thermal shock to the cutting edge.
Hard Metal Machining: Suitable for mold making and aerospace components where temperature control is critical.
Packaging & Shipping
Rust Prevention: All collets are cleaned and coated with a professional anti-rust oil before packaging.
Individual Packaging: Each collet is encased in a durable, labeled plastic protective box to prevent impact damage during transit.
Bulk Shipping: Packed in reinforced corrugated cartons suited for international logistics.




