CNMG 120404 NS9530 Wendeplatten - Tungaloy

Benefit from precise finishing, low cutting forces and reliable chip control to improve cycle times and surface quality; order the CNMG120404 NS9530 insert directly via Metav Werkzeuge or consult our advisors for application-specific guidance.

CNMG120404 NS9530 Tungaloy CNMG indexable turning insert for finishing (Turning)

The CNMG120404 NS9530 Tungaloy insert is an ISO-standard rhombic turning insert developed for finishing operations on steel, delivering a sharp cutting edge and consistently high surface quality.

High-quality uncoated cermet grade NS9530
Optimised for finishing cuts on steel
Double-sided chipbreaker for stable chip control
ISO CNMG 120404 geometry with 0.4 mm radius

Reduced cutting forces for consistent finishing

The insert employs an uncoated cermet grade designed to deliver a sharp cutting edge with lower friction compared with many coated grades, which translates into reduced cutting forces during continuous finishing passes. Lower forces mean fewer vibrations and improved dimensional stability on long, slender parts. For manufacturers aiming to tighten tolerances in serial turning, this geometry and grade help to maintain repeatable results while reducing the need for secondary grinding or ultra-fine finishing operations.

Stable chip control and predictable tool life

A double-sided chipbreaker combined with the CNMG rhombic shape provides controlled chip formation across common steel grades. The chip control is particularly effective in continuous cuts with small depths of cut, ensuring predictable evacuation and reduced risk of built-up edge. As a result, process reliability improves and machine downtime is minimised, which benefits small-batch job shops and high-volume production alike.

Geometry and dimensions that aid fixture compatibility

Designed to the ISO 120404 specification, the insert has a nominal 0.4 mm corner radius and an 80° approach angle, with a plate thickness of 4.76 mm and a 12 mm inscribed circle. These standardised dimensions ensure compatibility with a wide range of CNMG holders and boring bars; selection of the proper holder is governed by form, rake clearance, tolerance class, clamping method and size. The cylindrical hole and the standard mount make replacement straightforward and keep setup times short.

Practical benefits for shop-floor decision-making

Choosing this cermet finishing insert supports a clear cost-benefit rationale: improved surface finish with reduced secondary operations and stable chip control that lowers rework rates. The combination of ISO compliance, standardised mounting and a finishing-grade substrate helps to integrate the insert seamlessly into existing tool inventories. For applications where continuous cuts and small feed rates predominate, the grade promotes consistent surface integrity and reduced scrap.

For product availability or material-specific process advice on Tungaloy finishing inserts such as the CNMG120404 NS9530, contact Metav Werkzeuge for expert consultation and immediate ordering at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 6998269
• SKU: 6998269-Tungaloy
• Manufacturer SKU: TUN6998269

Facts

• Angle: 80°
• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Size (inscribed circle): 12 mm

Special features

• Uncoated cermet grade NS9530
• Double-sided chipbreaker
• Rhombic CNMG geometry
• Cylindrical hole, with hole
• ISO 120404 designation
• Application: turning, finishing on steel

FAQ

What materials is this insert suited to?
The CNMG120404 NS9530 Tungaloy insert is specified as a finishing grade for steel and performs best in continuous turning operations on common steel grades.

Can the insert be used in interrupted cuts?
This uncoated cermet grade is optimised for continuous finishing cuts; for severe interruptions or heavy interrupted cutting, a different insert geometry or a tougher grade may be preferable.

How does the 0.4 mm radius affect finish and strength?
A 0.4 mm corner radius provides a balance between a fine surface finish and sufficient edge strength for small depths of cut, making it suitable for precision finishing while maintaining robustness.

Is the insert reversible or single-use per edge?
The CNMG form is double-sided and indexable; both sides and multiple cutting edges can be used according to the insert’s geometry and wear condition to extend effective tool life.

Which holders are compatible with ISO CNMG 120404 inserts?
Compatibility depends on holder form, rake clearance, tolerance class, clamping method, size and thickness; CNMG-standard external holders and boring bars matching ISO CNMG dimensions are typically suitable.

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.