CNMG 120404 GT9530 Wendeplatten - Tungaloy

Take advantage of the combination of durable GT9530 coated cermet performance, precise CNMG geometry and straightforward holder compatibility to maintain consistent surface quality and longer tool life; order directly via Metav Werkzeuge or consult our specialists for optimal chipbreaker and holder pairing.

CNMG120404 GT9530 — Tungaloy indexable turning insert for turning, 80° rhombic

CNMG120404 GT9530 is a coated cermet indexable insert designed for finishing and light universal turning of steel in stable setups

• Coated cermet GT9530 for durable finishing
• 80° rhombic CNMG geometry for versatile turning
• 0.4 mm corner radius for fine surface quality
• Double-sided with cylindrical hole for secure clamping

High-performance finishing where consistency matters

The CNMG120404 GT9530 insert is engineered to deliver consistent surface finish and extended life in stable turning conditions. The coated cermet grade provides a hard contact surface that resists abrasive wear while preserving edge integrity, making it suitable for finishing passes and light universal turning operations on steel. Because the grade favours stable cutting conditions, cycle-time reductions are realised through fewer tool changes and predictable performance under constant feed and cut parameters.

Precision geometry and reliable clamping for repeatable results

The 80° rhombic geometry combined with a 0° clearance profile ensures predictable tool orientation and accessibility for both external and internal turning. The insert’s cylindrical hole and double-sided design simplify indexing and secure fastening in compatible holders; compatibility depends on form, clearance angle, tolerance class, fastening method, size and thickness. By selecting a holder that matches these parameters, reliable seating and repeatable runout are achieved, which directly supports dimensional accuracy and surface integrity.

GT9530 coating and cermet composition: why it matters for finishing

A coated cermet offers a blend of toughness and abrasion resistance that is particularly effective for achieving fine surfaces with reduced tendency to build-up edge. The GT9530 grade is a wear-resistant finishing to light-general-purpose option for steel when longer life and improved finish are priorities. For customers less familiar with cermet technology: cermet is a ceramic–metal composite that combines ceramic hardness with metallic toughness; the coating further enhances heat and wear resistance, extending productive tool life under consistent machining conditions.

System thinking: faster setups and more productive machining

The insert forms one element of a complete system: the ISO turning insert, a matched external holder or boring bar, a support pad/clamp set and replacement screws. Standardised ISO dimensions reduce setup time and simplify inventory management. Choosing the correct chipbreaker and grade for the workpiece and machining stability reduces cycle variability and scrap, which improves overall process efficiency. For practical use, pairing this insert with a robust fixture and a holder optimised for minimal overhang will exploit the GT9530’s strengths and preserve edge life.

Discuss application details and holder selection with Metav Werkzeuge — our specialists will advise on the best chipbreaker, holder and feeds to maximise tool life and finish; contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for tailored recommendations

Technical data

• Article number: 6998069
• Manufacturer SKU: TUN6998069
• Model series: ISO turning inserts
• ISO designation: CNMG120404
• Material: Carbide

Facts

• Size: 12 mm
• Plate thickness: 4.76 mm
• Included angle: 80°
• Clearance (relief) angle: 0°
• Corner radius: 0.4 mm

Special features

• Grade/coating: GT9530 coated cermet
• Chipbreaker: double-sided
• Plate form: rhombic
• Hole style: cylindrical hole
• Typical application: external and internal turning; finishing to light universal turning of steel

FAQ

What workpiece materials suit this insert best? The CNMG120404 GT9530 insert is intended primarily for steel machining, offering wear-resistant finishing and light universal turning performance in stable cutting conditions.

How does the GT9530 cermet grade improve surface finish? The GT9530 coated cermet provides a hard, wear-resistant contact surface that reduces edge wear and minimises material transfer, resulting in improved surface quality for finishing passes.

Is the CNMG120404 compatible with standard ISO CNMG holders? Compatibility depends on matching the insert form, relief angle, tolerance class, fastening method, size and thickness; when these parameters align, the CNMG120404 sits and clamps securely in standard ISO CNMG holders.

What advantages does the double-sided design offer? The double-sided configuration enables economical indexing, effectively doubling available cutting edges and reducing tool change frequency while maintaining clamping reliability via the cylindrical hole.

Which chipbreaker should be chosen for optimal results? Select a chipbreaker that matches the workpiece material, machining stability and the intended pass (finishing or light roughing); for finishing of steel the GT9530 grade combined with an appropriate fine-surface chipbreaker is recommended

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.