7mm ER Collet Precision Clamping, 5 µm Runout, 27mm Length - TECWERK

Take advantage of high repeatability and compact design to keep production tolerances tight while simplifying inventory management; order directly via Metav Werkzeuge or consult our specialists for suitability and fast fulfilment.

Collet ER 16/426 E – ER collet, clamping Ø 7 mm (TECWERK)

A robust Collet ER 16/426 E designed for precise toolholding in ER-style collet chucks, suitable for small to medium machining tasks where runout and repeatability are critical.

• DIN 6499-B compliant
• Full-length tool support
• Runout ≤ 5 µm
• Clamping Ø 7 mm

Consistent precision for demanding operations

The ER collet is engineered to deliver consistent concentricity: a specified runout of 5 µm ensures minimal radial error during rotation, which reduces tool wear and the need for rework. Conformity with DIN 6499-B provides a recognised interface standard for ER systems, simplifying replacement and compatibility checks. The design holds tools along the full-length clamping area, improving axial support and contributing to predictable cutting results—particularly beneficial for serial production and finishing operations where repeatable tolerances matter.

Secure grip with adaptable clamping behaviour

This clamping sleeve offers a defined clamping diameter 7 mm and a bridging capability of nominal minus 1.0 mm, allowing secure retention of cutting tools even when slight diameter deviations occur. The option to clamp on the lead chamfer extends practical flexibility for commonplace tool geometries. Compact external dimensions (L 27 mm, D 17 mm) make it suitable where radial space is limited while maintaining the mechanical stiffness necessary for stable machining. The result is reduced setup time and greater process reliability.

Easy integration and streamlined workshop logistics

Designed for ER-style collet chucks, the component fits into established toolholding ecosystems without the need for bespoke adaptors. The absence of intermediate sizes reduces the number of spare items required, supporting a leaner tooling inventory and faster tool changes. The robust mechanical concept from TECWERK focuses on longevity and consistent performance, which together contribute to less downtime and smoother production flow. For application or fitting questions, Metav Werkzeuge can advise on the correct selection and supply channels for immediate needs.

Contact Metav Werkzeuge today to secure TECWERK precision collets for reliable toolholding—Metav supplies from Emmerich with transparent order handling; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000832918NW
• Name: Collet ER 16/426 E, clamping Ø 7 mm
• Product type: ER collet
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Clamping diameter: 7 mm
• Length L: 27 mm
• Outer diameter D: 17 mm
• Runout / repeatability: 5 µm
• Clamping diameter bridging: nominal − 1.0 mm

Special features

• Standard: DIN 6499-B
• Fits ER-style collet chucks
• Tools held along full clamping length
• Can be clamped on the lead chamfer
• No intermediate sizes required

FAQ

What chuck systems is this collet compatible with?
The Collet ER 16/426 E is made for ER-style collet chucks and conforms to DIN 6499-B, ensuring straightforward compatibility with standard ER toolholders.

What is the nominal clamping size and its tolerance bridging?
The clamping diameter is 7 mm with a bridging capability of nominal minus 1.0 mm, allowing secure clamping of tools with minor dimensional variance.

How precise is the concentricity of the collet?
TECWERK specifies a runout and repeatability of 5 µm for this ER collet, supporting high-precision machining and consistent part quality.

Can tools be clamped on the lead chamfer with this collet?
Yes, the design permits clamping on the lead chamfer and supports tools along the full clamping length for improved axial stability.

What are the key dimensions to check for machine compatibility?
Relevant dimensions are length L = 27 mm and outer diameter D = 17 mm; the SKU for ordering is 2000832918NW.

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