34mm ER 25 Collet Clamping Diameter 5mm, Precision Runout 5 µm - TECWERK

Take advantage of the collet's precise runout and full-length clamping to reduce setup time and tool wear; the DIN‑compliant design and universal ER 25 fit ensure straightforward integration into existing toolholding systems. Order directly through Metav Werkzeuge or consult our specialists for application advice.

TECWERK ER 25 Collet — 5 mm, DIN 6499‑B compliance

The TECWERK ER 25 Collet is a precision clamping sleeve for ER 25 toolholders, designed to secure 5 mm shank tools with high repeatability in milling and drilling operations.

• 5 µm runout repeatability
• Conforms to DIN 6499‑B standard
• Clamping diameter 5 mm, length 34 mm
• Full-length grip, fits ER 25 chucks

Consistent precision for repeatable clamping

High machining quality starts with stable clamping. The clamping sleeve delivers 5 µm runout repeatability, which minimises radial play and supports consistent surface finish and longer tool life. By reducing micro‑vibration and eccentric loading, the result is fewer rejects and lower rework rates. The precise runout performance translates directly into measurable savings in cycle time and consumable costs for production environments that demand reliable tolerances.

Compatibility that reduces setup complexity

Built to the DIN 6499‑B specification, this collet integrates seamlessly with standard ER 25 chucks, eliminating uncertainty during upgrades or replacements. The design permits a full-length grip and allows clamping on the lead chamfer, so tools are held along their working length for superior support. The ability to bridge gaps by nominal minus 1.0 mm reduces the need for intermediate sizes, simplifying inventory and accelerating tool changes on busy shop floors.

Practical dimensions and handling benefits

Compact dimensions aid efficient handling without compromising stiffness: L: 34 mm, D: 26 mm and a clamping diameter of 5 mm match common tooling requirements. The sleeve's geometry ensures the tool is retained evenly across the clamping zone, improving repeatability and concentricity in serial production. For workshops seeking predictable performance from standardised components, this clamping sleeve offers a balance of convenience and industrial robustness.

For DIN‑compliant clamping and assured repeatability, choose TECWERK collets via Metav Werkzeuge — contact Metav Werkzeuge for ordering and technical advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000832926NW
• Product type: ER collet
• Label: Spannzange Typ ER 25/430 E Spann‑D.5mm TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Clamping diameter: 5 mm
• Length L: 34 mm
• d: 5 mm
• D: 26 mm
• Runout / repeatability: 5 µm
• Span bridging: nominal minus 1.0 mm

Special features

• Complies with DIN 6499‑B
• Suitable for ER 25 collet chucks
• Full‑length holding; can be clamped on lead chamfer
• No intermediate sizes required

FAQ

How accurate is the clamping with this collet?
The collet provides a runout repeatability of 5 µm, ensuring high concentricity when used in ER 25 chucks; the TECWERK ER 25 Collet (SKU 2000832926NW) is designed for precision retention.

Will this collet fit existing ER 25 toolholders?
Yes, the sleeve is manufactured to DIN 6499‑B and is compatible with standard ER 25 chucks, allowing direct replacement without adapter modifications.

What does "span bridging nominal minus 1.0 mm" mean in practice?
It means the collet can reliably clamp shank diameters up to 1.0 mm below the nominal size, reducing the need for additional intermediate collet sizes.

Can the tool be clamped on the lead chamfer with this sleeve?
Yes, the design supports clamping along the full length and permits secure retention on the lead chamfer for improved support.

What are the key dimensions to check before ordering?
Confirm the clamping diameter (5 mm), the overall length (L: 34 mm) and the outer diameter (D: 26 mm) to ensure compatibility with the toolholder and the intended tool shank.

TECWERK: Manufacturer/Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund