CPMT 09T308 NS9530 Wendeplatten - Tungaloy

Benefit from the combination of a sharp uncoated cermet grade and a 0.8 mm corner radius to achieve consistent finishing on steel components; the ISO rhombic geometry with 11° clearance supports reliable mounting and stable cutting in continuous operations. Order the CPMT09T308 NS9530 insert directly via Metav Werkzeuge or ask our consultants if needed.

CPMT09T308 NS9530 – Turning insert (ISO rhombic) by Tungaloy

The CPMT09T308 NS9530 is a rhombic ISO turning insert designed for finishing steel, offering a fine cutting edge and low cutting forces for continuous turning operations.

• Uncoated cermet grade NS9530
• Sharp cutting edge for fine finishing
• Rhombic ISO plate with 11° clearance
• Cylindrical hole with countersink for secure fixing

Consistent finishing and low cutting forces for steel

The insert is manufactured as an uncoated cermet in grade NS9530, a material class that combines ceramic hardness with metallic toughness to deliver a sharp cutting edge and superior wear behaviour during finishing. This composition reduces microchipping and enables low cutting forces, which directly contributes to improved surface quality and reduced burr formation on steel parts. For continuous cuts and small depths of cut, the result is a predictable surface finish and fewer secondary operations.

Geometry engineered for repeatable chip control and clamping

A measured corner radius of 0.8 mm and an unilateral chipbreaker give the insert stable chip formation while preserving the fine edge required for finishing. The plate is supplied in the ISO rhombic 09 format with a plate thickness of 3.97 mm and a 11° clearance angle, creating a balance between rigidity and accessibility at the tool tip. The central fastening is provided via a cylindrical hole with a single-sided countersink (40°–60°) for secure positive location and consistent clamp preload, which supports repeatable tool changeover and process stability.

Productivity gains through predictable performance

Using a finishing-grade insert such as this reduces the need for corrective passes: the combination of a sharp cermet grade and optimised geometry supports low cutting forces and stable edge life, helping to maintain dimensional accuracy over longer cycles. In practice this can shorten cycle time for high-volume finishing and reduce scrap rates. The insert is ISO‑standardised, which aids quick replacement and consistent part-to-part performance when integrated into a controlled machining process.

Compatibility, selection and application guidance

Compatibility with a toolholder depends on the holder’s form, relief/clearance angle, tolerance class, method of fastening, size and thickness; ensure the holder matches these parameters before installation. This insert is intended for external and internal turning where a finishing cut is required; select this grade for continuous cuts and small material removal rates. For mixed-material environments, check the substrate suitability: the grade is optimised for steel finishing and performs best under stable cutting conditions and appropriate coolant or lubrication strategies.

Contact Metav Werkzeuge for application advice or to confirm stock availability; Metav Werkzeuge's consultants can advise on holder compatibility and recommended cutting parameters for the CPMT09T308 NS9530 insert (SKU 6945233-Tungaloy). Email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance.

Technical data

• Article number: 6945233

• Manufacturer SKU: TUN6945233

• Label: CPMT09T308 NS9530 Tungaloy-Wendeplatte

Numbers / Core technical data

• Corner radius: 0.8 mm

• Clearance angle: 11°

• Included angle: 80°

• Plate thickness: 3.97 mm

• Plate size: 09

Special features

• Uncoated cermet grade NS9530
• Rhombic ISO turning plate (CPMT)
• One-sided chipbreaker
• Cylindrical hole with one-side countersink (40°–60°)
• Intended application: turning (external and internal)
• ISO-standardised series for compatibility

FAQ

What materials is this insert best suited for?
The CPMT09T308 NS9530 insert is optimised for finishing steel and is designed to deliver high surface quality and low cutting forces in continuous turning operations.

How does the uncoated cermet grade affect performance?
The uncoated cermet composition of the NS9530 grade provides a sharp edge and good wear resistance for finishing cuts, which helps to maintain surface finish and dimensional consistency during production.

Which holder features determine compatibility with the insert?
Holder compatibility is determined by form, clearance angle, tolerance class, method of fastening, size and plate thickness — matching these parameters ensures correct seating and clamping for reliable machining.

Is the insert suitable for interrupted cuts or heavy roughing?
This grade is a finishing sort geared towards continuous cuts and small depths of cut; for interrupted cuts or heavy roughing, select a grade and geometry designed for higher toughness and edge strength.

What fastening arrangement does the plate use?
The plate features a cylindrical hole with a single-sided countersink (40°–60°) for secure fixing and repeatable clamping in compatible ISO holders.

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.