9mm ER25 Collet Precision Hold; 34mm Length, 5 µm Runout - TECWERK

Taking advantage of precise standards conformity, minimal runout and reliable full‑length clamping, this collet ensures consistent concentricity and longer tool life in high‑precision setups; order the TECWERK ER 25 collet directly via Metav Werkzeuge or consult our advisers for specification support.

TECWERK ER 25 collet – clamping diameter 9 mm, precision to DIN 6499‑B

TECWERK ER 25/430 E collet for ER collet chucks, designed for accurate, full‑length tool clamping in machining and workshop environments

• DIN 6499‑B compliant for safe interchangeability
• Runout and repeatability 5 µm
• Holds tools along the full clamping length
• Clamping diameter bridging: nominal − 1.0 mm

Consistent concentricity for repeatable production quality

The ER 25 collet is engineered to deliver high concentricity: runout and repeatability of 5 µm keep the cutting edge on centre, reducing vibration and ensuring uniform surface finish. Compliance with DIN 6499‑B guarantees compatibility with standard ER collet chucks, making it straightforward to integrate into existing setups. Because the collet secures tools along the full clamping length, axial play is reduced and end‑mill and drill life is extended. For operations where tight tolerances and repeatable results matter, this clamping element supports improved productivity and fewer reworks.

Simple integration and inventory efficiency

Designed as an ER‑system component, the collet fits ER 25 chucks without intermediate inserts, so no extra spacer sizes are necessary. The compact dimensions L: 34 mm, d: 9 mm, D: 26 mm mean easy replacement and reduced spindle intrusion. The specification of clamping diameter bridging: nominal − 1.0 mm allows secure gripping when the chosen tool diameter lies below the nominal size, widening the usable range of a single collet and simplifying stock management. Clear dimensional data and standard conformity support predictable tool change routines and reduce machine downtime.

Robust handling and practical workshop benefits

Tools can be clamped on the chamfer or along the full length, enabling flexibility for different tool shank geometries and improving stability under load. The reliable clamping behaviour lowers the risk of radial slip during heavy cuts, which contributes to operator confidence and safer machining processes. For workshops seeking an economical way to raise consistency, this component offers durable performance with minimal maintenance. If further technical details are required for process planning or compatibility checks, Metav’s technical advisers are available to provide data sheets and application advice.

Contact Metav Werkzeuge for precise supply and compatibility advice on the TECWERK ER 25 collet (SKU 2000832930NW) and secure fast delivery from our Emmerich facility.

Technical Data

• Article number: 2000832930NW
• Type: ER 25
• Product type: ER collet
• SKU: 2000832930NW

Facts

• Clamping diameter: 9 mm
• Runout / repeatability: 5 µm
• Length (L): 34 mm
• Outer diameter (D): 26 mm
• Inner diameter (d): 9 mm

Special features

• Standard: DIN 6499‑B
• Suitable for ER collet chucks
• Clamps tools on the full clamping length
• Clamping diameter bridging: nominal − 1.0 mm
• Can be clamped on the guiding chamfer

FAQ

What tolerance can be expected for concentricity with this collet?
The TECWERK ER 25 collet offers a runout and repeatability specification of 5 µm, which supports high‑precision concentricity in machining tasks.

Will this collet fit standard ER 25 chucks?
Yes, the collet conforms to DIN 6499‑B and is compatible with standard ER 25 collet chucks for straightforward interchangeability.

What dimensions should be checked before ordering?
Check the key dimensions: L: 34 mm, d: 9 mm, D: 26 mm, and the clamping diameter of 9 mm to ensure compatibility with the intended tool shank and chuck.

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