TPMT 130308 NS9530 PM Wendeplatten - Tungaloy

Take advantage of a finishing-grade, uncoated cermet insert with a sharp cutting edge and low cutting forces to improve surface finish and process stability; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

TPMT 130308 NS9530 — ISO triangular turning insert by Tungaloy with 0.8 mm corner radius and 11° relief

A TPMT 130308 NS9530 insert for precision turning, designed for fine finishing of steel components in continuous cuts

• ISO triangular form, 13 mm inscribed circle
• Uncoated cermet NS9530 finishing grade
• Sharp edge for excellent surface finish
• 11° relief angle for low cutting forces

Improved surface quality and predictable finishing results

The insert is specified as an uncoated cermet grade NS9530, optimised as a finishing grade for steel. The combination of a sharp cutting edge and the cermet substrate produces low cutting forces, resulting in reduced tool-induced vibration and consistently better surface integrity on turned parts. For jobs that require small depths of cut and continuous material engagement, this geometry supports stable metal removal and a predictable part finish.

Designed for reliable fitment and clamping in ISO systems

Compatibility with toolholders is governed by geometry, clearance, tolerance class, fastening, size and thickness; the ISO format ensures straightforward matching to standard clamping systems. The triangular shape and the specified mounting hole (cylindrical with a one-sided countersink 40°–60°) permit secure indexing and repeatable positioning. This reduces set-up time and minimises the need for readjustment during production, supporting a smooth workflow in batch and single-piece manufacturing.

Edge geometry and dimensions that reduce cycle times

With a 0.8 mm corner radius, an 11° relief angle and an inscribed circle of 13 mm, the insert balances edge strength with the ability to generate a fine contact line for finishing passes. The modest thickness of 3.18 mm contributes to stiffness in the clamped assembly while keeping the insert profile compatible with compact holders. These dimensional choices can translate into faster finishing passes and less need for secondary operations when process parameters are aligned to the grade and chipbreaker.

Material match and application guidance for machinists

The substrate material and chipbreaker designation PM indicate suitability for continuous cutting modes and small feed rates typical of finishing operations. The grade’s low tendency for built-up edge and its sharp geometry make it appropriate where low cutting forces and excellent surface finish are priorities. Select a holder and cutting data that respect the insert’s intent as a finishing solution for steel to obtain the expected performance and tool life.

Contact Metav Werkzeuge today to discuss how the Tungaloy finishing insert can optimise the turning process in a production environment and to arrange tailored application support from our consultants.

Technical data

• Manufacturer article number: 6998557
• SKU: 6998557-Tungaloy
• Model series: ISO turning inserts

Core dimensions

• Inscribed circle: 13 mm
• Corner radius: 0.8 mm
• Thickness: 3.18 mm
• Relief angle: 11°
• Included angle: 60°

Features and materials

• Material: carbide substrate (Hartmetall)
• Cutting material: uncoated cermet NS9530
• Chipbreaker: PM (finishing)
• Shape: triangular
• Mounting: with hole — cylindrical hole + one-sided countersink (40°–60°)
• Application: turning

FAQ

What materials is this insert intended to machine?
The NS9530 finishing grade is tailored for machining steel; the insert excels in continuous cuts and small depths of cut where fine surface quality is required.

How is holder compatibility determined for this insert?
Compatibility depends on the ISO geometry: form, relief angle, tolerance class, fastening method, size and thickness; matching these parameters ensures the insert fits and clamps correctly.

How does the chipbreaker affect performance?
The PM chipbreaker is a finishing-style geometry that promotes stable chip flow in continuous cutting, supporting low cutting forces and improved surface finish.

How many times can the insert be indexed?
The triangular shape provides multiple cutting edges; indexing count is determined by wear and the integrity of the cutting edge rather than the insert geometry alone.

Which part number should be referenced when ordering?
Use the manufacturer article number 6998557 or SKU 6998557-Tungaloy when enquiring about the TPMT 130308 NS9530 finishing 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.