This High-Precision ER Spring Collet Set is designed for professional machining applications, offering outstanding accuracy, stability, and durability. Each collet is manufactured from high-grade elastic steel, precision-ground, and heat-treated to ensure consistent performance under high-speed rotation and heavy-duty workloads.
Whether you are performing milling, drilling, tapping, engraving, or precision CNC machining, these collets provide balanced clamping force, reduced vibration, and extended tool life. The comprehensive range of sizes ensures optimal flexibility for different tool diameters and machining requirements.
Key Features:
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High Precision: Maintains excellent concentricity for superior surface finish and machining accuracy.
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Premium Material: Made from high-strength spring steel for exceptional wear resistance and elasticity.
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Wide Compatibility: Suitable for CNC routers, milling machines, lathes, drilling machines, engraving machines, and tapping machines.
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Comprehensive Size Coverage: Multiple sizes included for maximum versatility.
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Enhanced Tool Life: Reduces tool wear by minimizing vibration during operation.
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Corrosion Resistant: Anti-rust treatment for long-lasting performance.
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Easy Maintenance: Smooth surface for effortless cleaning.
What You Will Receive
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Complete ER spring collet set (according to selected size range)
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Protective storage case ×1
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Quality inspection report, packing list, and commercial invoice
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After-sales support: Free replacement for missing or damaged items within 48 hours of delivery confirmation
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Technical guidance on model selection and maintenance
Packing List
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ER spring collets (full set according to order)
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Storage case (plastic or metal, with protective internal layout)
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Shockproof outer carton packaging
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Packing list and invoice
Shipping Information
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Ships via international express courier or dedicated logistics lines (DAP or DDU terms)
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Asia: 3–6 business days
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North America / Europe: 5–9 business days
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Other regions: 6–12 business days
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Tracking number provided within 24 hours after dispatch
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Bulk orders: Air freight or sea freight available; rates and lead times confirmed before shipment
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Optional DDP service with tax included and door-to-door delivery available
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Shipping insurance offered for high-value orders
Available Sets
| Set Model | Clamping Range (mm) | Outer Diameter (mm) | Length (mm) | Pieces |
|---|---|---|---|---|
| ER8 | 1–5 | 8.5 | 13.5 | 13 pcs |
| ER11 | 1–7 | 11.5 | 18 | 13 pcs |
| ER16 | 1–10 | 17 | 27.5 | 15 pcs |
| ER20 | 1–13 | 21 | 31.5 | 13 pcs |
| ER25 | 1–16 | 26 | 34 | 15 pcs |
| ER32 | 2–20 | 33 | 40 | 18 pcs |
| ER40 | 3–26 | 41 | 46 | 23 pcs |
| ER50 | 6–34 | 52 | 60 | 25 pcs |
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