8mm ER 32 Collet Precision Clamping, 5 µm Runout Accuracy, L 40mm - TECWERK

Combine high-precision runout of 5 µm with full-length tool support and DIN 6499‑B compatibility for reliable clamping in production environments; order the collet directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK ER 32 collet (ER 32/470 E) — 8 mm clamping diameter

A TECWERK ER 32 collet (ER 32/470 E, 8 mm) is a precision clamping element for ER collet chucks, engineered for consistent runout control and secure tool retention in milling and drilling applications

• Precision runout ≤ 5 µm
• Full-length tool retention
• DIN 6499‑B compatible
• 8 mm clamping diameter, L 40 mm

High-precision clamping for consistent production results

The ER collet delivers precision where it matters: with a documented runout and repeatability of 5 µm, this clamping sleeve reduces vibration and tool deflection, improving surface finish and tool life. Built to the DIN 6499‑B standard, the component provides a verifiable basis for repeatable setup in batch production. By converting this technical accuracy into measurable process stability, the collet helps to shorten rework cycles and supports predictable machining tolerance achievement.

Secure grip and extended support prevent tool movement

Designed to hold tools along the full clamping length, the clamping element ensures uniform pressure distribution and minimises radial runout during cutting operations. The ability to clamp on the guiding chamfer adds practical flexibility when seating tools of varying shank profiles. These characteristics mean fewer tool changes due to slippage and a lower risk of concentricity loss, which in turn raises throughput and reduces unexpected machine downtime.

Compact dimensions with workshop-friendly installation

With a clamping diameter of 8 mm, an overall length of 40 mm and an outer diameter of 33 mm, the collet integrates easily into standard ER 32 collet chucks. The nominal clamping bridging of nominal −1.0 mm allows reliable gripping across the specified tolerance range without additional spacers. The compact form factor supports tight setups in crowded toolholders while maintaining the mechanical stability required for medium-duty milling and drilling tasks.

Clear specification and compatibility reduce procurement risk

Compliance with DIN 6499‑B and the explicit mechanical data make the product straightforward to specify for purchasing and quality assurance. As a standard ER 32 accessory, the component is compatible with typical ER collet chucks, simplifying stockkeeping and replacement procedures. The documented metrics—such as 5 µm runout, 40 mm length and 33 mm outer diameter—offer a concise verification checklist for incoming inspection and fixture planning.

Discuss the TECWERK ER 32 collet and its 5 µm runout capability with Metav Werkzeuge to confirm fitment and application suitability—email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000832944NW
• Type: ER 32
• Product: ER collet
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Clamping diameter: 8 mm
• Length (L): 40 mm
• Outer diameter (D): 33 mm
• Runout / repeatability: 5 µm
• Clamping diameter bridging: nominal −1.0 mm

Special features

• DIN 6499‑B compliance
• Fits ER collet chuck
• Held along full clamping length
• Can be clamped on the guiding chamfer

FAQ

What level of runout can be expected from this collet?
The TECWERK ER 32 collet is specified with a runout and repeatability of 5 µm, which supports high-precision machining and consistent concentricity.

Is this collet compatible with standard ER 32 chucks?
Yes, the component is designed to DIN 6499‑B and fits standard ER 32 collet chucks, making it suitable for common toolholding systems.

Can tools be clamped on the lead chamfer with this collet?
The collet allows clamping on the guiding chamfer, enabling secure seating of tools with varied shank geometries.

What are the physical dimensions relevant for fixture planning?
Key dimensions are 8 mm clamping diameter, 40 mm length and 33 mm outer diameter, which should be considered during holder and spindle integration.

How much clamping range is bridged by the collet?
The clamping diameter bridging is specified as nominal −1.0 mm, indicating the effective gripping range relative to the nominal diameter.

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