2mm ER25 Collet 34mm Length, 5 µm Runout Accuracy - TECWERK

A compact solution for repeatable toolholding: precise ER 25 clamping with 2 mm nominal diameter and 5 µm runout delivers reliable grip and consistent part quality; compatible with standard ER chucks and conforming to DIN 6499‑B. Order the TECWERK ER 25 collet directly via Metav Werkzeuge or consult the Metav team for application advice.

TECWERK ER 25 collet — 2 mm clamping diameter, DIN 6499‑B compatible

TECWERK ER 25 collet for secure tool clamping in ER systems; designed for general workshop and production use.

• ER 25 collet for 2 mm clamping diameter
• Conforms to DIN 6499-B
• Holds tools along full clamping length
• Runout and repeatability 5 µm

Improved process stability through tight runout control

High-precision production benefits directly from consistently low runout. The ER 25 clamping sleeve delivers a 5 µm specification for roundness and repeatability, which reduces vibration and uneven tool wear during machining. Lower deviation at the tool tip leads to more predictable cutting forces and improved surface finish, helping to reduce scrap rates and increase first-pass yield. In short production chains, this precision supports stable cycle times and contributes to reliable overall equipment effectiveness.

Secure grip and flexible clamping for varied tools

The design holds tools along the full clamping length, ensuring a firm grip even when the cutting tool is engaged close to the collet face. The collet accepts clamping on the leading chamfer of a tool and does not require intermediate sizes, which simplifies tool inventory management. The specified clamping diameter 2 mm with a clamping diameter bridging of nominal minus 0.5 mm allows a practical overlap range for slightly oversized or undersized shanks, increasing versatility without compromising safety or concentricity.

Easy integration with existing ER systems and compact dimensions

Compatibility with ER tooling systems eases retrofit and replenishment workflows: the collet conforms to DIN 6499‑B, fits standard ER 25 chucks and uses a compact form factor (L: 34 mm, D: 26 mm) for space-conscious setups. The simple, standardised interface reduces setup time and supports fast tool changes, which is especially valuable in workshops and production cells where minimising downtime is vital. Consistent clamping behaviour contributes to predictable maintenance intervals and tool life assessments.

Contact Metav Werkzeuge for tailored application advice or to secure the TECWERK ER 25 collet for precise, repeatable toolholding.

Technical data

• Article number: 2000832923NW
• Label: Spannzange Typ ER 25/430 E Spann-D.2mm TECWERK
• Type: ER 25
• Product type: Spannzange ER
• Manufacturer: TECWERK

Dimensions & performance

• Clamping diameter (d): 2 mm
• Outer diameter (D): 26 mm
• Length (L): 34 mm
• Runout / repeatability: 5 µm
• Clamping range specification: nominal minus 0.5 mm
• Clamping range value: 2 mm

Features & compatibility

• Conforms to DIN 6499-B
• Suitable for ER collet chucks
• Tools held along the full clamping length
• Can be clamped on the lead chamfer
• No intermediate sizes required
• Packaging unit: 1

FAQ

What clamping diameter does this collet support?
The TECWERK ER 25 collet is specified for a 2 mm clamping diameter and a clamping-range overlap of nominal minus 0.5 mm.

Is the collet compatible with standard ER 25 chucks?
Yes, the collet conforms to DIN 6499‑B and is intended for use with standard ER 25 chucks.

How accurate is the toolholding of this collet?
Roundness and repeatability for the TECWERK ER 25 collet are specified at 5 µm, supporting consistent machining results.

Can tools be clamped using the leading chamfer?
The design allows clamping on the leading chamfer; tools are held along the full clamping length for secure fixation.

What are the main dimensions of the collet?
Key dimensions are L: 34 mm, D: 26 mm, with a clamping diameter of 2 mm (see SKU 2000832923NW).

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