34mm ER-20 Collet Chuck With Steep Taper For ER Collets - Vertex

Take advantage of precision clamping, a compact ER-20 steep taper and robust build for stable machining and reliable repeatability; order directly via Metav Werkzeuge or consult Metav's specialists for tailored advice.

V-742D collet chuck — ER-20 steep taper, 34 mm nominal diameter (Vertex)

V-742D is a collet chuck designed for secure toolholding with ER collets, optimised for precision tool clamping in milling and drilling applications

• ER-20 steep taper for ER collets
• 34 mm nominal diameter
• Precision clamping for machining stability
• Robust 1.2 kg construction

Stable gripping for reproducible results

The collet chuck is engineered to deliver precision clamping and consistent concentricity in demanding workshop environments. The steep ER-20 taper ensures a tight, coaxial fit between the toolholder and spindle, reducing radial play and improving repeatability. Lower runout translates to longer tool life and better surface finishes, which is particularly valuable in serial machining where each cycle must meet the same tolerances. The compact 34 mm envelope supports confined setups without compromising stiffness.

Faster setup and secure tool retention

A reliable clamping system shortens non-productive time and increases machining throughput. The steep taper design provides positive tool retention under axial and radial loads, enhancing stability during heavy cuts. The construction weight of 1.2 kg contributes to a stable toolholder mass while remaining manageable for rapid changeovers. Compatibility with standard ER collets simplifies tool inventory and reduces the need for specialised adapters, enabling straightforward integration into existing toolholding systems.

Practical application and workshop benefits

This toolholder is suited for a range of conventional milling and drilling tasks where repeatable concentricity is required. The geometry of the taper and the ER system supports a wide selection of collet sizes, allowing flexible clamping of various shank diameters when used with the appropriate ER collet set. For shops seeking a reliable, compact solution for precision toolholding, the Vertex collet chuck offers a pragmatic balance of rigidity, size and compatibility. If specification advice is required, Metav's technical team is available to assist with selection and integration guidance.

For procurement and technical advice on Vertex collet chucks such as the V-742D, contact Metav Werkzeuge for direct support from Emmerich: info@metav-werkzeuge.com • +49 2822 7131930 • WhatsApp +49 170 2837271

Technical data

• Article number: V-742D
• GTIN: 4061905085451
• Manufacturer: Vertex

Core dimensions

• Diameter: 34 mm
• Weight: 1.2 kg
• Cone: ER-20

Features

• Steep taper for ER collets
• Compatible with ER collet system
• Compact toolholder for confined setups

FAQ

Which collets fit this chuck?
The V-742D collet chuck from Vertex accepts ER collets compatible with an ER-20 cone, allowing use of the standard ER collet range for that taper.

What is the nominal diameter and mass of the toolholder?
The toolholder has a nominal diameter of 34 mm and a weight of 1.2 kg, providing a compact yet stable solution for precision clamping.

What benefits does the steep taper provide?
A steep ER-20 taper in the V-742D improves coaxial alignment and retention, reducing runout and enhancing machining stability and tool life.

Is the V-742D suitable for high-speed operation?
The V-742D is designed for precision clamping with ER collets; suitability for specific spindle speeds depends on machine setup and collet selection.

How does this collet chuck integrate with existing toolholding systems?
The V-742D uses the ER-20 standard taper, enabling straightforward integration with ER collets and common collet accessories used in workshop toolholding systems.

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