7mm ER 32-GB Collet With 5.5mm Internal Square, 15 µm Runout, 40mm Length - TECWERK

Combining DIN 6499 conformity, a 15 µm runout accuracy and a compact 40 mm length, the ER32-GB collet offers dependable clamping performance for threading and precision ER-system operations; order directly via Metav Werkzeuge or consult our specialists for compatibility and delivery details.

ER32-GB collet by TECWERK — 7 mm clamping diameter, internal 5.5 mm square

The ER32-GB collet is a DIN 6499-compatible clamping insert designed for thread-cutting and precision clamping tasks in ER collet chucks and thread-cutting attachments.

• DIN 6499 compatibility for standard chucks
• Internal square 5.5 mm for thread cutting
• Clamping diameter 7 mm with 15 µm runout
• Compact length 40 mm for tight setups

Precision that reduces rework and improves throughput

The compact ER system design delivers concentrated clamping force around the tool shank, translating to consistent concentricity and reduced vibration. With a specified runout accuracy of 15 µm, the collet minimises off-centre cutting, which lowers scrap rates and shortens machining cycles. This tangible gain in process reliability supports lean production aims and makes the tool especially suitable where repeatable thread quality and surface finish are required.

Integration with standard tooling for faster setup

Built to DIN 6499 with an internal 5.5 mm square, the collet accepts thread-cutting mandrels and fits existing ER chucks without special adaptors. The modest 40 mm overall length eases insertion in compact spindles and tooling plates, allowing simple retrofitting into current setups. By matching established standards, the component reduces changeover complexity and supports modular tooling strategies, helping workshops maintain uptime and predictable tooling stocks.

Robust clamping for everyday workshop demands

A 7 mm clamping diameter provides a focused solution for smaller shank tools and threading mandrels, while the ER32 size retains the stiffness expected from ER-series collets. The internal square feature ensures positive drive when used for thread cutting, preventing slippage during interrupted cuts. Combined, these attributes make the collet a pragmatic choice for maintenance shops, service departments and production cells where dependable repeatability and straightforward handling are priorities.

For precise threading and reliable ER-system clamping, contact Metav Werkzeuge in Emmerich for tailored advice and supply at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000834971NW
• Type: ER 32-GB
• Label: Spannzange ER32-GB Spann-D.7mm 4-KT.5,5mm TECWERK
• Product type: Spannzange GB
• Packaging unit: 1

Facts

• Clamping diameter: 7 mm
• Runout accuracy: 15 µm
• Length (L): 40 mm
• Diameter (d): 7 mm
• Internal square: 5.5 mm

Special features

• DIN 6499 compatibility
• Internal square for thread cutting
• Suitable for ER collet chucks and thread-cutting holders
• Designed for precise concentric clamping

FAQ

What chuck types is this collet compatible with?
The ER32-GB collet is manufactured to DIN 6499 and is compatible with standard ER collet chucks and thread-cutting adapters designed for the ER system.

Can the collet be used for thread cutting operations?
Yes, the internal 5.5 mm square is specifically provided for thread-cutting mandrels and ensures a positive drive in such applications with the ER32-GB collet.

How does the stated runout affect machining quality?
A runout accuracy of 15 µm reduces eccentricity at the tool tip, improving surface finish and thread concentricity while lowering the likelihood of premature tool wear.

Is the ER32-GB suitable for compact setups with limited spindle clearance?
The collet’s 40 mm length and ER32 format make it suitable for installations where axial space is restricted, enabling easier integration into compact spindles and tooling fixtures.

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