6mm ER32-GB Collet With 4.9mm Internal Square For Thread Cutting, 15 µm Runout - TECWERK

Benefit from precise tapping and consistent clamping thanks to DIN 6499 compatibility and a measured runout of 15 µm; the compact 40 mm design keeps setups neat and reduces interference. Order directly via Metav Werkzeuge or request technical advice from the consultants for application-specific recommendations.

Collet ER32-GB – TECWERK ER32 GB collet with 6 mm clamping diameter and 4.9 mm internal square

The Collet ER32-GB is an ER32 GB collet designed with an internal square to support tapping operations and a 6 mm clamping diameter for accurate tool holding in ER-type collet chucks.

• ER32‑GB design with internal square for tapping
• 6 mm clamping diameter for precise hold
• Runout accuracy 15 µm for concentricity
• Compact 40 mm length for tight spaces

Accurate tapping starts with consistent clamping

The ER32‑GB collet is engineered for reliable thread-cutting and tapping applications by combining the internal square geometry with proven ER clamping mechanics. Conforming to DIN 6499, the internal square secures the tap during rotation and prevents slippage, while the measured runout accuracy of 15 µm ensures concentricity between tool and workpiece. For machining processes where thread quality and repeatability matter, this level of precision reduces rework and supports consistent part quality. The collet’s 6 mm clamping diameter and compact profile make it straightforward to integrate into existing ER-type setups without extensive reconfiguration.

Compatibility that shortens setup and stabilises cycles

Designed to mate with standard ER-type collet chucks, the GB variant simplifies tool changes and keeps the tool centre aligned. The short 40 mm length assists in tight spindle spaces and reduces overhang, which in turn reduces vibration and improves surface finish. Compatibility with tapping and thread-cutting operations means fewer specialised holders are required, streamlining tool inventory and setup time. The combination of standard interfaces and a snug 4.9 mm square drive supports dependable engagement for rotary tapping and similar operations, contributing to faster, error-free changeovers.

Process stability that protects tool life and productivity

Consistent clamping accuracy directly impacts tool life and cycle reliability; lower runout minimises radial forces and uneven wear on taps and small-diameter tools. The GB collet’s design focuses on secure torque transmission during tapping, reducing the risk of thread distortion and broken tools. By favouring concentricity and a solid mechanical connection, the collet supports stable feeds and speeds, which leads to improved process reliability and fewer interruptions on the shop floor. For operations that prioritise throughput and repeatable quality, this component contributes to measurable gains in overall equipment effectiveness.

For secure tapping and dependable clamping, consider the TECWERK ER32‑GB collet—contact Metav Werkzeuge for ordering details or application advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 2000834970NW
• Type: ER 32-GB
• Product: GB collet
• Packaging unit: 1

Facts

• Clamping diameter: 6 mm
• Runout accuracy: 15 µm
• Length: 40 mm
• Square drive: 4.9 mm

Special features

• According to DIN 6499
• Internal square for tapping
• Suitable for thread-cutting and ER-type collet chucks
• Compact design for confined spindle spaces

FAQ

What clamping diameter does the collet provide?
The collet offers a clamping diameter of 6 mm and is designed to hold small-diameter taps and tools securely.

Is this collet suitable for tapping operations?
Yes. The ER32‑GB collet features an internal 4.9 mm square and is manufactured according to DIN 6499, making it suitable for tapping and thread-cutting tasks.

What runout can be expected and why does it matter?
Runout is specified at approximately 15 µm; lower runout improves concentricity, reduces tool wear and enhances thread quality during machining.

Which chucks are compatible with this collet?
The collet is compatible with standard ER-type collet chucks and tapping collet holders that accept ER32‑GB variants.

How compact is the design and what benefit does that bring?
With a length of 40 mm, the collet minimises tool overhang, helping to reduce vibration and improve surface finish in confined spindle arrangements.

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