Description
ER40 Collets – 4 mm Clamping Diameter
Our collets achieve superior concentricity, exceeding DIN standards.
Specialized in Collets, Card Heads, Cable Connectors, Chucks, and Fixtures.
Manufactured from high-quality spring steel, our collets undergo heat treatment to ensure excellent flexibility and wear resistance.
Suitable for holding drills, boring tools, engraving tools, reamers, and other cutting implements.


Performance Advantages
- High hardness and wear resistance from manganese steel, ensuring high precision.
- Robust clamping force for exceptional stability and precision.
- Low-noise operation.
- Extended tool lifespan.
- Improved cutting accuracy and surface finish fidelity.
- Compatible with carbide microtools.
Please specify your required model when ordering.

When ordering tools, kindly indicate the specific model required in the “Add comments” section of your order.

Contact Information
Contact us for inquiries:
- Phone: 082-972-9329 (Jimmy)
- Phone: 083-256-5981 (Gomin)
- Office: 02-312-0227
- E-mail: [email protected]





