Introducing the 1PC ER50 ER40 ER32 ER25 AAA/UP High Precision 0.003mm Spring Collet – the ultimate gripping solution for engraving machines, spindles, and CNC machining centers. Engineered with ultra‑tight tolerance and robust spring‑loaded design, this collet delivers unrivaled accuracy and repeatability for every precision‑machining task.
Key Highlights
- ✅ Ultra‑high precision: ±0.003 mm tolerance ensures flawless concentricity and minimal run‑out.
- ✅ Versatile compatibility: Fits ER50, ER40, ER32, ER25, AAA and UP tool holders – one collet, many machines.
- ✅ Spring‑loaded clamping: Provides consistent gripping force, reduces tool vibration, and extends tool life.
- ✅ Durable construction: High‑grade steel with a polished surface resists wear and corrosion.
- ✅ Easy installation: Simple hand‑tighten design eliminates the need for additional tools.
Why Choose This Spring Collet?
When precision matters, you need a collet that can keep up with the demands of high‑speed engraving and CNC milling. This collet’s micro‑tolerance and spring mechanism deliver:
- Maximum tool stability for finer detail and smoother finishes.
- Reduced setup time – swap tools quickly without sacrificing accuracy.
- Longer spindle life thanks to balanced load distribution.
- Consistent performance across a wide range of materials, from soft plastics to hardened metals.
Technical Specifications
- Material: High‑strength alloy steel
- Tolerance: ±0.003 mm
- Compatible sizes: ER50, ER40, ER32, ER25, AAA, UP
- Operating temperature: –20 °C to +120 °C
- Finish: Polished, anti‑corrosion coating
Ideal Applications
Perfect for professionals and hobbyists alike, this collet excels in:
- Engraving machines – intricate lettering and detailed graphics.
- CNC machining centers – high‑speed milling, drilling, and tapping.
- Spindle tool changes – fast, reliable, and repeatable clamping.
- Prototype production – tight tolerances for small‑batch runs.
Installation & Maintenance Tips
- Clean the spindle taper and collet interior before each use.
- Hand‑tighten the collet until it feels snug; avoid over‑torquing.
- Periodically inspect the spring for fatigue and replace if necessary.
- Store in a dry environment to prevent corrosion.
Upgrade your machining precision today with the 1PC ER50 ER40 ER32 ER25 AAA/UP High Precision 0.003mm Spring Collet – the reliable, high‑performance choice for demanding CNC and engraving applications.
Price: Original price was: $ 10.40.$ 3.59Current price is: $ 3.59.

