CNMG 120412 NS9530 Wendeplatten - Tungaloy

High-precision finishing with low cutting forces and consistent surface quality is achieved by selecting the right grade and geometry; the CNMG120412 NS9530 combines an uncoated cermet grade with a sharp edge for continuous turning operations. Benefit from the 80° rhombic geometry and a 1.2 mm nose radius for stable contouring; order the CNMG120412 NS9530 turning insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG 120412 NS9530 CNMG ISO turning insert — uncoated cermet, 80° rhombic (Tungaloy)

The CNMG120412 NS9530 is an ISO rhombic insert engineered for finishing in turning, offering a sharp cutting edge and low cutting forces for improved surface quality.

• Uncoated cermet for fine finishing
• 80° rhombic geometry, stable cutting
• 1.2 mm nose radius for precise contours
• Double-sided with central cylindrical hole

Consistent finishing performance for steel turning

The combination of an uncoated cermet grade and a sharp cutting edge is optimised for finishing operations in steels. The cermet composition delivers low cutting forces and reduced built-up edge tendency, which in turn improves the surface quality on continuous cuts and small depths of cut. As a finishing grade, the insert is suited to applications where dimensional accuracy and repeatable surface roughness are priorities; the material choice and edge preparation reduce vibration sensitivity and support stable tool life in predictable production runs.

Geometry and clamping built for stability and repeatability

The 80° geometry with a rhombic profile and a 1.2 mm nose radius provides a controlled cutting line and helps maintain part form when profiling or turning shoulders. The insert thickness of 4.76 mm and overall size 12 mm follow ISO conventions, while the 0° relief angle and the central cylindrical hole enable secure clamping in compatible holders. The double-sided chipbreaker design permits indexable use and contributes to consistent chip control; chipbreaker selection should match workpiece material, process stability and the intended depth of cut to achieve the best results.

Practical system considerations and selection guidance

The insert forms part of a standard ISO system: insert, matching external holder or boring bar, shim/clamping set and replacement screws. Compatibility with a given holder is determined by form, clearance, tolerance class, fastening method, size and thickness. For finishing steel under continuous cutting conditions, the NS9530 grade is recommended for its surface finish capability and low cutting forces. When selecting an indexable solution, choose the chipbreaker and grade that align with machine rigidity and feed rates to maximise productivity and predictable component quality.

For application advice or to secure original Tungaloy CNMG 120412 NS9530 turning inserts contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt supply and consultancy.

Technical data

• Article number: 6944513
• SKU: 6944513-Tungaloy
• Manufacturer SKU: TUN6944513
• Model series: ISO turning inserts
• Grade: NS9530 (uncoated cermet)
• Material: Cemented carbide (cermet type)

Core figures

• Insert designation: CNMG120412
• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 1.2 mm
• Relief/clearance angle: 0°
• Insert angle: 80°
• Hole style: Central cylindrical hole

Design & features

• Rhombic insert shape (80°)
• Double-sided chipbreaker
• Central cylindrical hole for clamping
• ISO-norm conformity for holder compatibility
• Finishing grade for steel turning
• Suitable for continuous cuts and small depths of cut

FAQ

Is this insert suitable for finishing steel?
Yes. The CNMG120412 NS9530 is a finishing uncoated cermet grade designed for steel turning, offering low cutting forces and improved surface quality.

What geometry and radius does the insert offer?
The insert features an 80° rhombic geometry with a 1.2 mm nose radius, optimised for stable contouring and accurate finishing.

How is the insert clamped in the holder?
Clamping uses the central cylindrical hole and follows ISO holder conventions; compatibility depends on form, clearance, tolerance class, fastening, size and thickness.

Is the chipbreaker suitable for roughing operations?
The double-sided chipbreaker is designed primarily for finishing and controlled chip formation; for heavy roughing, a grade and chipbreaker geared to high cutting forces is preferable.

What are the article and SKU numbers for ordering?
Manufacturer article number 6944513; SKU 6944513-Tungaloy; manufacturer SKU TUN6944513 for reference when ordering the CNMG120412 NS9530 turning insert.

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.