TPMT 16T308 NS9530 Wendeplatten - Tungaloy

Take advantage of the NS9530 uncoated cermet finishing grade, the 0.8 mm nose radius and the ISO triangular form for consistently high surface quality and low cutting forces. Order the insert directly via Metav Werkzeuge or contact the consultants for tailored advice.

TPMT 16T308 NS9530 – ISO triangular turning insert for finishing by Tungaloy

The TPMT16T308-23 NS9530 is an ISO‑standard triangular turning insert designed for precision external and internal turning, optimised as a finishing grade for steel components.

• Finishing uncoated cermet grade NS9530
• Sharp cutting edge for high surface finish
• 0.8 mm nose radius for fine detail
• ISO triangular insert, 11° clearance angle

Delivering superior surface finish with low cutting forces

The uncoated cermet composition NS9530 is formulated as a finishing grade for steel applications, providing a sharp cutting edge and low cutting forces, which together produce a finer surface. For continuous cuts and small depths of cut the material combination reduces built‑up edge and stabilises the contact zone, so the machined component requires less post‑processing. The design is therefore particularly suited to jobs that prioritise consistent cosmetics and tight dimensional tolerances over heavy stock removal.

Geometry and mounting that ensure repeatable accuracy

The insert’s ISO‑standard triangular shape and 60° included angle give predictable toolpath geometry for many external and internal turning operations. The 0.8 mm nose radius balances detail and strength for finishing profiles, while the 11° clearance angle reduces flank rubbing and helps maintain a fine surface on the workpiece. Attachment relies on the specified hole style — a cylindrical hole with a one‑sided countersink (40°–60°) — and compatibility is determined by form, clearance, tolerance class, fastening, size and thickness; matching holder geometry is therefore essential for repeatable results.

Workshop benefits that improve process reliability

Made from a carbide‑based material and offered in an uncoated cermet variant, the insert gives stable cutting behaviour in finishing passes and supports consistent surface quality across batches. The chipbreaker 23 geometry should be selected in accordance with workpiece material and the intended depth of cut to ensure reliable chip control; correct pairing of insert grade and chipbreaker reduces downtime and scrap. Overall, this combination supports a cost‑efficient finishing strategy where component appearance and dimensional fidelity are decisive.

Compatibility guidance and system overview

The ISO insert is part of a system that comprises an appropriate external holder or boring bar, a support pad/clamp set and replacement screws. Plate dimensions and form must match the toolholder: plate size 16 mm, plate thickness 3.97 mm, and ISO designation 16T308 inform the correct clamping and seating. When integrating the insert into production, confirm holder clearance and tolerance class to prevent misalignment and to preserve the intended cutting geometry and surface outcome.

For precision finishing tasks with Tungaloy’s NS9530 grade, contact Metav Werkzeuge for application support and order processing via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6998637
• Manufacturer SKU: TUN6998637
• SKU: 6998637-Tungaloy
• Model series: ISO turning inserts
• Designation: TPMT16T308-23 NS9530
• Application: Turning
• Material: Carbide

Facts

• Nose radius: 0.8 mm
• Plate size: 16 mm
• Plate thickness: 3.97 mm
• Clearance angle: 11°
• Included angle: 60°
• Chipbreaker: 23

Special features

• Uncoated cermet finishing grade NS9530
• Sharp cutting edge for high surface finish
• Optimised for continuous cuts and small depths of cut
• ISO triangular plate with cylindrical hole and one‑sided countersink (40°–60°)
• Compatibility determined by form, clearance, tolerance class, fastening, size and thickness

FAQ

What applications suit this insert best?
The TPMT16T308-23 NS9530 is intended for precision external and internal turning where a finishing grade for steel is required; it excels on continuous cuts and small depths of cut.

Which materials can be machined with this grade?
The NS9530 uncoated cermet is principally designed for steel finishing operations; matching the chipbreaker 23 and machining parameters to the workpiece ensures optimal results with the Tungaloy insert.

How is the insert mounted in the toolholder?
The insert features a cylindrical hole with a one‑sided countersink (40°–60°) and must be clamped with a compatible holder and clamp set that match the insert’s form, size and thickness.

What does the 0.8 mm radius mean for part finish?
A 0.8 mm nose radius offers a compromise between fine surface quality and edge strength, enabling detailed profiles with minimal rounding while maintaining consistency across the component.

Can this insert be used for roughing?
This plate is a finishing grade and is optimised for low cutting forces and high surface finish; for heavy stock removal a dedicated roughing grade and a different chipbreaker geometry are 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.