ER8 ER11 ER16 ER20 ER25 Chuck Collet Spindle Motor Shaft Extension Rod Spindle Chuck Tool Set – the ultimate solution for precision machining, CNC milling, and hobbyist projects. This comprehensive set includes high‑grade spindle rods in 4 mm, 5 mm, 6 mm, 8 mm, and 10 mm diameters, designed to fit a wide range of spindle motors and collets.
Key Highlights
- All‑metal construction for maximum strength and durability
- Precision‑machined edges for smooth engagement with collets
- Wide diameter range (4 mm to 10 mm) to accommodate various spindle motors
- Easy installation – simply slide the rod into the collet and secure with the provided set screw
- Compatible with ER8, ER11, ER16, ER20, and ER25 collets and spindle motors
- Corrosion‑resistant finish for long‑term use in workshop environments
Technical Specifications
- Material: Hardened steel with anti‑rust coating
- Length options: 100 mm, 150 mm, 200 mm (custom lengths available upon request)
- Thread tolerance: ±0.01 mm for a snug fit
- Operating temperature: –20 °C to 120 °C
- Weight: 0.5 kg per rod (varies by size)
Applications
Whether you’re building a CNC router, upgrading a milling machine, or fine‑tuning a hobbyist spindle, this extension rod set delivers reliable performance. Ideal for:
- High‑precision CNC machining
- Woodworking and metalworking spindles
- 3D printing extruder upgrades
- Tooling for laser cutters and engraving machines
Why Choose This Set?
With its robust construction, versatile diameter range, and seamless compatibility with ER series collets, this spindle motor shaft extension rod set is engineered to keep your machines running smoothly and your projects on schedule. Upgrade today and experience the difference in torque, stability, and precision.
Price: Original price was: $ 9.27.$ 4.64Current price is: $ 4.64.

