3mm ER32 Collet 40mm Clamping Length 5µm Runout Nominal Minus 1.0mm Span - TECWERK

Take advantage of high clamping accuracy and broad compatibility for reliable tool holding in production. With DIN 6499‑B compliance and a guaranteed 5 µm runout/repeatability, this collet delivers consistent results while reducing set‑up time; order via Metav Werkzeuge or consult the technical team for tailored advice.

ER 32/470 E Collet (ER 32) — 3 mm Clamping Diameter, TECWERK

The ER 32/470 E Collet is an ER 32 clamping collet engineered for precise holding of 3 mm tool shanks in ER collet chucks, compliant with DIN 6499‑B for industrial machining.

• Compliant with DIN 6499‑B standard
• Fits ER collet chucks ER 32
• Full‑length tool clamping for stability
• Runout and repeatability ≤ 5 µm

Achieve consistent machining with low runout and repeatability

The primary advantage of this collet is its controlled concentricity: compliance with DIN 6499‑B and a specified runout/repeatability of 5 µm ensure that the tool axis remains stable during rotation. This technical precision reduces vibration and tool wear, which in turn improves surface finish and process reliability. For workshops aiming to minimise rejects and rework, the measurable concentricity is a concrete performance parameter that supports predictable machining outcomes.

Flexible compatibility reduces set‑up time on the shop floor

Designed to mate directly with ER 32 collet chucks, the component removes the need for intermediate adapters or special sizes. Tools are held along the entire clamping length, and the collet can be seated on the lead chamfer, enabling secure gripping even when minor variations in shank length occur. The straightforward fitment shortens tool changes and supports efficient production cycles without compromising clamping integrity.

Practical dimensions and clamping bridge for adaptable use

The collet’s dimensions — L: 40 mm, D: 33 mm, d: 3 mm — define a compact yet robust profile suitable for many standard toolholders. The clamping bridge is specified as nominal minus 1.0 mm, which means the collet can compensate for a small undersize in the tool shank while maintaining clamping force; this increases usable tolerance and reduces the need for exact re‑grinding of tools. Such dimensional clarity aids selection and inventory planning in technical procurement.

Robust holding behaviour that supports daily workshop demands

Because tools are gripped over the whole clamping length, axial and radial forces are distributed more evenly than with partial clamping, improving stability under load. The ER 32 design from TECWERK offers a balance of rigidity and ease of use that is particularly well suited to milling, drilling and finishing operations where repeatable accuracy matters. For industrial and trade workshops seeking dependable clamping components, this collet contributes to consistent throughput and tool life.

For reliable, high‑precision toolholding choose the TECWERK ER 32/470 E Collet and contact Metav Werkzeuge for stock information, application advice and immediate technical support — eMail: info@metav-werkzeuge.com · Tel: +49 2822 7131930

Technical data

• Article number: 2000832939NW
• Model: Spannzange Typ ER 32/470 E Spann‑D.3mm TECWERK
• Type: ER 32
• Product type: Spannzange ER
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Clamping diameter: 3 mm
• L: 40 mm
• d: 3 mm
• D: 33 mm
• Runout/repeatability: 5 µm
• Clamping bridge: nominal minus 1.0 mm

Special features

• Complies with DIN 6499‑B
• Fits ER collet chucks (ER 32)
• No intermediate sizes required
• Tools held along full clamping length
• Can be clamped on the lead chamfer

FAQ

What runout tolerance can be expected from this collet?
The specified runout and repeatability for the TECWERK ER 32/470 E Collet is 5 µm, which supports precise machining and consistent surface quality.

Is this collet compatible with standard ER 32 chucks?
Yes, the collet is designed to fit ER 32 collet chucks and follows DIN 6499‑B, so no special adapters are required for standard holders.

How does the clamping bridge specification affect tool selection?
The clamping bridge of nominal minus 1.0 mm allows the collet to accommodate slightly undersized shanks while maintaining secure clamping, increasing flexibility when tools are marginally undersize.

Can the tool be gripped on the lead chamfer?
The design permits clamping on the lead chamfer and holds tools over the entire clamping length, improving stability for shorter shanks or when axial positioning is critical.

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