4.5mm ER11 Collet Precision Clamping, 5 µm Runout, L 18mm - TECWERK

Take advantage of precise, repeatable clamping and full-length tool retention for reliable machining results; the collet's 5 µm runout specification and nominal clamping range of 4.5 mm ensure consistent concentricity and tool life. Order the ER 11 collet directly via Metav Werkzeuge or ask our consultants if needed.

ER 11 collet – TECWERK, clamping diameter 4.5 mm, DIN 6499‑B compatible

ER 11 collet for general-purpose ER chucks, designed for secure holding of tools with a 4.5 mm clamping diameter in light to medium machining tasks

• DIN 6499‑B compatibility
• Full-length tool retention
• 5 µm runout repeatability
• Clamping diameter 4.5 mm nominal

Consistent concentricity for repeatable machining

A precision ER 11 collet with a specified runout of 5 µm provides the core benefit of improved part quality and reduced tool wear. Low radial runout reduces vibration and imbalance during rotation, which translates into tighter tolerances and fewer rejected parts. The specified clamping diameter of 4.5 mm and the declared clamping diameter bridging (nominal − 0.5 mm) mean the collet maintains secure contact even when small diameter variations occur, supporting uninterrupted production and predictable machining outcomes.

Built for direct compatibility and secure tool holding

Designed to comply with DIN 6499‑B, this clamping sleeve fits standard ER collet chucks without the need for intermediate adapters. The tool is held along the entire clamping length, which distributes clamping forces and reduces bending moments on slender cutters. A 18 mm overall length and an outer diameter of 11.5 mm provide a compact yet stable interface that can be used on the lead chamfer of shanks where applicable. This combination reduces setup time and simplifies seating, making the component suitable for mixed production runs and frequent tool changes.

Practical advantages for workshops and production lines

The compact design delivers dependable performance in small-series fabrication and workshop environments where reliability and ease of use matter. The collet's capability to bridge minor diameter differences reduces the need for frequent tool remeasurement, while the repeatability specification supports automated and manual operations alike. For procurement managers and workshop supervisors, the result is a reduction in downtime and a more predictable maintenance cadence, reinforcing a trustable supply chain for precision tooling needs.

For secure, repeatable clamping with the TECWERK ER 11 collet, contact Metav Werkzeuge for expert advice and reliable delivery from Emmerich

Technical data

• Article number: 2000832859NW
• SKU: 2000832859NW
• Type: ER 11
• Label: Spannzange Typ ER 11/4008 E Spann-D.4,5mm TECWERK
• Manufacturer: TECWERK
• Product type: ER collet
• Clamping range: 4,5
• Packaging unit: 1
• UID: 2000832859NW

Facts

• L: 18 mm
• d (clamping diameter): 4.5 mm
• D (outer diameter): 11.5 mm
• Runout / repeat accuracy: 5 µm
• Clamping diameter bridging: nominal − 0.5 mm

Special features

• Conforms to DIN 6499‑B
• Suitable for ER collet chucks
• Tools held along whole clamping length
• Can be clamped on the lead chamfer
• No intermediate sizing required
• Repeatability for production use
• Packaging unit: 1

FAQ

Is this collet compatible with standard ER 11 chucks? Yes. The ER 11 collet (TECWERK, SKU 2000832859NW) is specified as compatible with ER‑type collet chucks and conforms to DIN 6499‑B.

What clamping diameter does the collet accept? The collet is specified for a nominal clamping diameter of 4.5 mm, with a bridging allowance of nominal − 0.5 mm for small diameter variations.

What runout performance can be expected? A runout (repeat accuracy) of 5 µm is stated, supporting high concentricity and reduced tool vibration during rotation.

Can tools be gripped on the lead chamfer? Yes. The design permits clamping on the lead chamfer and retains tools along the entire clamping length for improved stability.

How is the collet delivered? Delivery is per packaging unit: the product is supplied as a single collet (packaging unit: 1) for straightforward inventory handling.

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