3mm ER16 Collet Precision Hold, 5µm Runout, 27mm Length - TECWERK

Take advantage of the proven combination of precision clamping, DIN 6499‑B compatibility and compact dimensions for consistent machining results; order the collet directly via Metav Werkzeuge or consult our specialists for application advice.

TECWERK ER 16 collet 426 E — clamping Ø 3 mm

The TECWERK ER 16 collet 426 E (3 mm) is a compact precision clamping sleeve for ER collet chucks, designed to hold tools securely over the full clamping length for repeatable machining operations

• DIN 6499‑B compatibility
• Whole-length tool clamping
• Runout and repeatability 5 µm
• Compact L 27 mm, clamping Ø 3 mm

Predictable accuracy for everyday machining

The collet delivers a guaranteed runout and repeatability of 5 µm, a specification that translates directly into reduced scrap rates and tighter tolerances in series production. Runout refers to the radial deviation of the tool tip during rotation; limiting this value means the cutter or drill follows the intended path more closely. The design holds the tool along its entire clamping length, which reduces bending and improves concentricity compared with short-grip alternatives. For production environments that prioritise process stability, this level of geometric control shortens setup iterations and supports consistent quality.

Simple integration with standard ER toolholding systems

Built to DIN 6499‑B standards, the collet fits ER‑type chucks without the need for intermediate adaptors. The nominal clamping diameter of 3 mm and the specified bridging capability (nominal minus 1.0 mm) allow a small tolerance window to be compensated without changing the clamping element. Dimensions such as L: 27 mm, d: 3 mm and D: 17 mm make the component compact yet practical for tool stations with limited axial clearance. This compatibility reduces procurement friction and accelerates machine changeovers in mixed‑tool operations.

Robust form factor for repeatable handling and uptime

The compact construction, together with the full‑length gripping principle, enhances mechanical stability under cutting loads and facilitates predictable tool life. The option to clamp on the lead chamfer (guide bevel) increases versatility when working with short or stepped shanks. Because the collet secures the tool along more of its length, clamping forces are distributed more evenly, reducing deformation and minimising rework. For workshops and production lines seeking reliable repeatability, this component contributes to lower downtime and steadier throughput.

Contact Metav Werkzeuge today for tailored application advice and to source TECWERK ER 16 collets from our Emmerich hub — call +49 2822 7131930 or email info@metav-werkzeuge.com to discuss suitability for specific machines and toolsets.

Technical data

• Article number: 2000832914NW
• Manufacturer: TECWERK
• Product type: ER collet
• Product label: Spannzange Typ ER 16/426 E Spann-D.3mm TECWERK
• Clamping range: 3
• Packaging unit: 1

Core dimensions

• L: 27 mm
• d: 3 mm
• D: 17 mm
• Runout and repeatability: 5 µm
• Clamping diameter bridging: nominal minus 1.0 mm

Special features

• Compatibility: DIN 6499‑B
• Holds tools over the whole clamping length
• Usable on the guide chamfer (lead bevel)
• No intermediate sizes required

FAQ

What is the declared runout for this ER 16 collet?
The declared runout and repeatability for the TECWERK ER 16 collet (SKU 2000832914NW) is 5 µm, ensuring high concentricity for cutting tools.

Can this collet be used in any ER 16 chuck?
Yes, the collet is made to DIN 6499‑B and is compatible with standard ER 16 collet chucks without modifications.

What clamping diameter does the collet accept?
The collet is specified for a 3 mm clamping diameter with a bridging allowance of nominal minus 1.0 mm to accommodate minor size deviations.

Is it suitable for short tool shanks or stepped tools?
The design allows clamping on the lead chamfer (guide bevel) and along the full clamping length, making it suitable for short or stepped shanks where secure engagement is needed.

What are the main dimensions to check for machine fitment?
Key dimensions are L: 27 mm, d: 3 mm, and D: 17 mm; these determine axial clearance and bore fit in the chuck.

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