16mm ER25 Collet For ER25/430 E, 5 µm Runout, 34mm Length - TECWERK

Take advantage of the combination of high precision, proven compatibility with ER tooling and reliable full‑length clamping for consistent machining results; order the collet directly via Metav Werkzeuge or ask the consultants for application advice.

ER 25 Collet 430 E – 16 mm clamping diameter (TECWERK)

A ER 25 Collet 430 E for ER collet chucks, offering full‑length tool support and a runout specification suited to precise production and workshop use.

• DIN 6499‑B standardised design
• Full‑length tool support
• Runout accuracy 5 µm
• Clamping tolerance: nominal −1.0 mm

Consistent concentricity for repeatable results

The primary benefit of a low runout specification is predictable machining quality. With a runout and repeatability of 5 µm, the collet reduces radial wobble at the tool tip, which improves surface finish, minimises eccentric wear and increases the probability of producing parts within tolerance. For users of ER tooling, this level of concentricity supports longer tool life and more reliable batch production, translating to fewer rejects and less rework.

Secure tool holding across the entire clamping length

Designed so that tools are held along the whole clamping length, the collet provides a stable interface between spindle and cutter. That full‑length support, combined with the ability to be clamped on the lead chamfer, ensures that short shanks and chamfered tools are gripped securely without reducing accuracy. The construction removes the need for intermediate shims or special adaptors, simplifying setup and reducing downtime between operations.

Simple integration with ER systems and workshop equipment

Compliant with DIN 6499‑B, this collet fits standard ER 25 chucks and aligns with common industry practice for clamping technology. The design accommodates a clamping compensation of nominal −1.0 mm, enabling the collet to bridge minor diameter deviations while maintaining stable grip. Compatibility with established ER systems makes replacement and stocking straightforward for maintenance teams and toolrooms.

Built for reliable everyday use in production and trade

Compact dimensions — L: 34 mm, d: 16 mm, D: 26 mm — make the collet a practical choice for both small‑series production and busy workshops. The combination of standardised interface, stable clamping and tight runout contributes to smoother process control and less variability in machining operations. For procurement managers and workshop supervisors, the tool represents a pragmatic choice that supports continuous supply and consistent part quality.

Contact Metav Werkzeuge in Emmerich for stock availability and technical advice via info@metav-werkzeuge.com or call +49 2822 7131930 for assistance with selection and ordering.

Technical data

• Article number: 2000832937NW
• Label: Spannzange Typ ER 25/430 E Spann‑D.16mm TECWERK
• Product type: ER collet
• Brand: TECWERK
• Packaging unit: 1

Facts

• Clamping diameter: 16 mm
• Length L: 34 mm
• Inner diameter d: 16 mm
• Outer diameter D: 26 mm
• Runout / repeatability: 5 µm
• Clamping compensation: nominal −1.0 mm

Special features

• Conforms to DIN 6499‑B
• Suitable for ER collet chucks
• Tools held along entire clamping length
• Can be clamped on the lead chamfer
• No intermediate sizes required

FAQ

What is the expected runout for this collet?
The specified runout and repeatability for the ER 25 Collet 430 E is 5 µm, which supports precise, repeatable machining results.

Which clamping diameter does the collet accept?
The collet is specified for a 16 mm clamping diameter and provides a clamping compensation of nominal −1.0 mm to accommodate slight diameter deviations.

Is the collet compatible with standard ER chucks?
Yes — the design complies with DIN 6499‑B and is intended for use with ER 25 collet chucks, facilitating straightforward integration into existing ER systems.

How does full‑length support improve performance?
Holding the tool along the whole clamping length increases stability, reduces tool deflection and helps maintain concentricity, resulting in better surface finish and longer tool life.

What are the key dimensions to check for installation?
Relevant dimensions are L: 34 mm, d (inner): 16 mm, and D (outer): 26 mm, which determine fitment and clearance in the chuck.

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