CNMG 120408 NS9530 Wendeplatten - Tungaloy

The combination of a sharp uncoated cermet grade and ISO compatibility ensures consistent precision finishes on steel with low cutting forces; benefit from stable performance for continuous turning operations and straightforward retrofitting into ISO holders. Order the CNMG120408 NS9530 inserts directly via Metav Werkzeuge or consult the team for application advice.

CNMG120408 NS9530 Tungaloy ISO turning indexable insert — uncoated cermet, 0.8 mm radius

The CNMG120408 NS9530 is an ISO rhombic turning indexable insert designed for fine finishing of steel components in external and internal turning operations.

• Uncoated cermet NS9530 for fine finishing
• Low cutting forces and sharp cutting edge
• Double-sided chipbreaker for continuous cuts
• ISO rhombic 120408 with 0.8 mm corner radius

Consistent fine finishing on steel components

The uncoated cermet composition and the NS9530 grade deliver a deliberately sharp cutting edge that reduces cutting forces and improves surface finish during finish-turning. This material choice is optimised for continuous cuts and small depths of cut, yielding a measurable reduction in rework and improved first-pass quality. The result is a reliable finishing solution for steel parts where dimensional tolerance and surface integrity are critical.

Smooth integration into ISO tool systems

Designed to the ISO CNMG120408 form, the rhombic geometry and 0° relief angle guarantee compatibility with standard external holders and boring bars when size, thickness and clamping match. The insert’s cylindrical hole and specified thickness support secure clamping and repeatable positioning, simplifying tool changeover and reducing machine downtime for series production environments.

Productivity and process advantages during machining

The double-sided chipbreaker geometry enables indexable use and stable chip formation in finishing conditions, contributing to predictable tool life and process reliability. With a 0.8 mm corner radius the insert balances edge strength and fine surface generation; this makes the grade particularly suitable for achieving tight surface roughness targets without excessive cutting forces.

Practical machining guidance and application fit

For turning applications in steel where a high-quality finish is required, the combination of carbide substrate and cermet wearing characteristics reduces built-up edge and enhances dimensional stability. The insert is optimised for operations that prioritise finish quality over heavy material removal; selecting the correct holder rigidity and feed rate will maximise the NS9530 performance and deliver consistent throughput.

Contact Metav Werkzeuge for tailored machining recommendations and to order Tungaloy CNMG120408 NS9530 inserts for prompt delivery — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6998139-Tungaloy
• Manufacturer article number: 6998139
• Manufacturer SKU: TUN6998139
• Manufacturer: Tungaloy

Facts

• Geometry designation: CNMG120408
• Corner radius: 0.8 mm
• Relief angle: 0°
• Included hole: with cylindrical hole
• Plate thickness: 4.76 mm
• Insert size: 12 mm
• Cutting edge angle: 80°

Special features

• Material: carbide substrate with uncoated cermet top layer
• Grade: NS9530
• Chipbreaker: double-sided
• Shape: rhombic
• Application: turning (external and internal finishing)
• Typical use: continuous cutting, small depths of cut, fine finishing of steel
• Compatibility: ISO-standard holders determined by form, relief angle, tolerance, clamping, size and thickness

FAQ

What machining tasks is this insert best suited for?
The CNMG120408 NS9530 Tungaloy insert is intended for finishing operations in turning, especially where a sharp cutting edge and low cutting forces are required to achieve high surface quality on steel components.

Can this insert be used in standard ISO CNMG toolholders?
Yes, the insert follows the ISO CNMG120408 form; compatibility depends on matching the holder’s seat form, relief angle, tolerance class, clamping method and the insert thickness of 4.76 mm.

Is the insert coated or uncoated, and what does that mean for tool life?
This Tungaloy indexable insert is an uncoated cermet in grade NS9530; the uncoated surface supports exceptionally sharp edges for finishing, with process advantages on continuous cuts and stable surface generation.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius provides a compromise between edge strength and the ability to produce fine surface finishes; it supports small depths of cut typical in finishing passes with reduced tendency to vibration.

Does the CNMG120408 NS9530 include a chipbreaker, and what is its benefit?
Yes, the insert features a double-sided chipbreaker, which promotes consistent chip control and allows indexable use, thereby extending effective tool life in continuous finishing operations.

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.