SCMT 09T308 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of precise surface finish, low cutting forces and straightforward compatibility with Tungaloy milling systems for efficient finishing operations. Order directly via Metav Werkzeuge or consult our specialists for application-specific guidance.

SCMT 09T308 NS9530 indexable insert for milling — Tungaloy

The SCMT 09T308 NS9530 indexable insert is a cermet finishing grade designed for precision milling applications, offering a sharp cutting edge and stable performance in continuous cutting with small depths of cut.

• Cermet grade NS9530 for fine finishing
• Sharp cutting edge for low cutting forces
• 0.8 mm corner radius for fine surface quality
• Cylindrical hole with 40°–60° countersink

Delivering consistently high surface quality and low cutting forces

The insert is manufactured as an uncoated cermet finishing grade (NS9530) that combines a sharp cutting edge with low thermal sensitivity. This results in reduced cutting forces and improved component finish compared with tougher, general-purpose grades. For operators seeking reliable cosmetic and dimensional quality on ferrous components, the combination of a fine cermet substrate and razor-like geometry ensures a high surface finish with minimal secondary machining. The design is particularly effective for continuous cutting passes and small step-over strategies, where stability of the cutting edge directly affects cycle time and scrap rates.

Precise geometry and secure seating for repeatable results

The insert's geometry — a square 09 format with a 0.8 mm corner radius and a 7° relief angle — is optimised for controlled chip formation and predictable engagement with the workpiece. A cylindrical mounting hole with a single-sided countersink (40°–60°) ensures positive location and clamping on compatible cutter bodies; insert seat, geometry and cutter body must match technically for safe operation. The plate thickness of 3.97 mm and the 90° included angle provide mechanical stability while maintaining accessible cutting edge clearance. These features reduce vibration and enable repeatable results part-to-part on medium-precision milling machines.

Application-focused economy and process guidance

This uncoated cermet is intended as a dedicated finishing solution for steel components and is best employed with modest depths of cut and continuous feed to exploit its low-friction edge. Typical uses include face milling, shoulder milling, slotting, high-feed and contour operations depending on the assigned tool family. The insert's chipformer code (23) supports steady chip evacuation in applicable conditions. From a cost-efficiency perspective, reduced rework and longer intervals between edge changes contribute to a favourable total cost of ownership, particularly in high-mix batch production where surface quality is critical. For process setup, prefer stable fixturing and conservative entry conditions to protect the sharp edge and sustain the advantageous surface results.

Contact Metav Werkzeuge today for tailored advice on Tungaloy cermet finishing inserts and secure optimal milling performance with the SCMT 09T308 NS9530.

Technical data

• Article number: 6998494
• Manufacturer SKU: TUN6998494
• Label: SCMT09T308-23 NS9530 Tungaloy-Wendeplatte
• Model series: Fräswendeschneidplatten

Core specifications

• Thickness: 3.97 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Size: 09
• Included angle: 90°

Features & applications

• Grade: NS9530 (uncoated cermet)
• Material: cemented carbide
• Chipbreaker: 23
• Hole: with cylindrical hole + single-sided countersink (40°–60°)
• Shape: square
• Typical application: milling (face, shoulder, slot, high-feed, contour)
• System components: cutter body, indexable insert, clamping screw, backing pad (as applicable)
• Note: Insert seat, geometry and cutter body must match technically

FAQ

What materials is this insert best suited for?
The SCMT 09T308 NS9530 insert is designed as a finishing grade primarily for steel; its uncoated cermet composition provides a sharp edge and low cutting forces suitable for continuous finishing cuts.

How does the 0.8 mm corner radius affect machining results?
A 0.8 mm corner radius gives a balance between edge strength and surface quality, enabling fine finishes while maintaining sufficient robustness against edge chipping during finishing passes with the SCMT 09T308 NS9530.

Is this insert compatible with all Tungaloy milling systems?
Compatibility requires matching the insert seat, geometry and cutter body. The SCMT 09T308-23 format is intended for Tungaloy systems that accept square 09 inserts with the specified hole and countersink style.

What is the purpose of the cylindrical hole with countersink?
The cylindrical hole plus single-sided countersink (40°–60°) ensures precise axial and radial positioning and secure clamping on compatible cutter bodies, improving repeatability and safety during milling.

Which machining strategies best exploit this insert’s strengths?
Continuous cutting with small depths of cut and stable feed rates will best exploit the sharp cermet edge of the SCMT 09T308 NS9530, delivering superior surface finish and reduced need for secondary 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.