21.5mm Rubber Flex Collet For VTA7 Thread Cutting Attachment, Fits Ø7–Ø10mm - Vertex

Take advantage of precise vibration damping, compact design and compatibility with VTA7 threading units to maintain consistent thread quality and reduce rework. Order the component directly via Metav Werkzeuge or contact our consultants for specification checks and supply options.

FC-21 Rubber-Flex collet — Flexible collet for VTA7 threading units, Ø21.5 mm (Vertex)

A FC-21 Rubber-Flex collet designed for the VTA7 threading apparatus, offering elastic clamping for small-diameter bar stock and improved process stability in serial thread-cutting applications.

• Flexible rubber damping
• Designed for VTA7 threading units
• Fits Ø21.5 mm nominal diameter
• Suitable for Ø7–Ø10 mm shank diameters

Consistent clamping for more reliable thread results

The elastic Rubber-Flex design provides vibration damping that reduces chatter during thread cutting, which leads to improved surface finish and fewer rejects. By combining flexible material behaviour with a precise nominal diameter of Ø21.5 mm, the collet stabilises small workpieces in the spindle, allowing cutting tools to perform at their intended feed and speed. This translates into shorter cycle times and a more predictable production output for workshop and light-industry environments where repeatability matters.

Compact profile that simplifies handling and changeover

With a compact length of 13 mm, the clamping sleeve minimises overhang in the spindle and supports neat tool layouts on the VTA7 unit. The reduced projection helps to lower bending forces on slender workpieces and facilitates faster changeovers when different shank sizes are processed. Compatibility with shank diameters Ø7–Ø10 mm makes it suitable for a wide range of small-diameter bars and rods, while the simple mechanical interface keeps maintenance straightforward and quick.

Built for continuous use and straightforward maintenance

The design focuses on uptime: elastic clamping avoids concentrated forces that can cause premature wear on either the workpiece or the collet itself, and replacement is quick when required. As a Vertex original part with SKU FC-21, the component integrates into established threading workflows and supports stable process parameters, reducing the need for frequent adjustments. Choosing a robust clamping solution improves operational reliability and helps to centralise procurement needs under a trusted supplier.

For dependable clamping with Vertex quality and tailored advice, contact Metav Werkzeuge — call +49 2822 7131930 or email info@metav-werkzeuge.com to discuss compatibility and rapid supply options.

Technical data

• SKU: FC-21
• GTIN: 4061905094873
• eClass: 21041712
• Designed for: VTA7 threading unit

Facts

• Nominal diameter: 21.5 mm
• Length: 13 mm
• Suitable shank diameters: Ø7–Ø10 mm

Special features

• Rubber-flex damping clamping
• Precision fit for small-diameter workpieces
• Intended for thread-cutting operations

FAQ

What machine is the collet compatible with?
The collet is intended for use with the VTA7 threading unit; the Vertex FC-21 Rubber-Flex collet matches the unit’s interface and mounting requirements.

Which shank diameters can be clamped with this collet?
The FC-21 is suitable for shank diameters in the range Ø7–Ø10 mm, providing stable retention for small-diameter bars and rods.

How does the Rubber-Flex design benefit thread cutting?
Elastic damping from the Rubber-Flex clamping sleeve reduces vibration and chatter during cutting, resulting in improved surface finish and fewer rework cycles when using Vertex clamping components.

Is the collet easy to replace during maintenance?
Yes; the compact length and straightforward interface of the FC-21 simplify removal and replacement, supporting quick maintenance and minimal machine downtime.

Manufacturer: Vertex Machinery Works Co., Ltd.; No. 296, Sec. 1, Feng Shih Road, Fengyuan District, Taichung City 420, Taiwan