DCMT 11T304 NS9530 Wendeplatten - Tungaloy

Take advantage of a purpose-built finishing solution that combines a sharp uncoated cermet grade and precise geometry for consistent surface quality and low cutting forces; order direct via Metav Werkzeuge or consult the specialists for application support.

DCMT 11T304 NS9530 – ISO rhombic turning insert for finishing (Tungaloy)

The DCMT 11T304 NS9530 is an ISO rhombic turning insert engineered for precision finishing of Stahl, offering a sharp cutting edge and optimised cutting behaviour for continuous cuts and small depths of cut.

• ISO rhombic turning insert for finishing
• Uncoated cermet NS9530 for low cutting forces
• 0.4 mm corner radius for refined surface finish
• 7° clearance and 55° lead angle for stability
• Countersunk central hole, 3.97 mm thickness

High-precision finishing with low cutting forces

The NS9530 grade is an uncoated cermet developed for fine finishing of Stahl; it delivers a sharp cutting edge with low cutting forces, which produces a high surface finish on continuous turning operations. This finishing grade reduces the risk of built-up edge at light feeds and small depths of cut, so the machining process becomes more stable and predictable. For production environments where surface integrity is critical, this insert allows a reliable balance between productivity and part quality.

Geometry tuned for repeatability and clamping security

The ISO rhombic form and the 55° lead angle combine to give predictable chip flow and dimensional control when used in compatible external holders. The 0.4 mm corner radius is selected to improve surface finish while preserving edge strength for small-immersion passes. A 7° clearance angle reduces rubbing and heat generation at the flank face. The central feature is a cylindrical hole with a one-sided countersink (40°–60°), enabling secure clamping; the insert thickness of 3.97 mm supports stable seating under cutting loads. These geometric parameters are decisive for reproducible part results and straightforward holder selection.

System compatibility and practical application guidance

This ISO insert is designed to be used as part of a system consisting of an appropriate external holder or boring bar, a locating shim or clamp set and replacement screws. Compatibility with a given holder is determined by form, clearance angle, tolerance class, fixation method, size and thickness; matching these criteria ensures correct seating and performance. The single-sided chipbreaker is intended for finishing chip control; choose chipbreaker and grade according to workpiece material, cutting mode and machine rigidity. For indexable-insert workflows, the insert integrates with standard ISO tooling concepts and simplifies inventory logistics.

For application advice or to request supply of Tungaloy DCMT 11T304 NS9530 finishing inserts, please contact Metav Werkzeuge for tailored recommendations and availability.

Technical Data

• Article number: 6998619
• Manufacturer SKU: TUN6998619
• SKU: 6998619-Tungaloy
• Model series: ISO turning inserts

Facts

• Shape size: 11
• Thickness: 3.97 mm
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Lead angle: 55°

Design / Special features

• Uncoated cermet grade NS9530
• Rhombic insert (DCMT)
• Central hole with cylindrical bore and one-sided countersink (40°–60°)
• Single-sided chipbreaker
• Compatible with ISO-standard holders; check form, clearance, tolerance, fixation, size and thickness

FAQ

What workpiece materials is this insert suitable for? The DCMT 11T304 NS9530 insert is a finishing grade intended primarily for Stahl machining; the uncoated cermet composition provides a sharp edge and is optimised for continuous cuts and fine feeds.

How does the 0.4 mm corner radius affect the machined surface? A 0.4 mm corner radius smooths the transition between passes, improving surface finish while maintaining adequate edge strength during small-depth finishing passes with the DCMT 11T304 NS9530 insert.

Which holders are compatible with this ISO insert? Compatibility depends on insert form, clearance angle, tolerance class, fixation method, size and thickness; the insert is made for ISO-standard external holders that accept DCMT-style rhombic inserts.

What advantage does the uncoated cermet NS9530 offer in finishing operations? The uncoated cermet NS9530 provides a sharp cutting geometry with low cutting forces and excellent surface quality in finishing; it is particularly effective for continuous turning and small cuts.

Is the insert suitable for interrupted cuts or heavy roughing? The DCMT 11T304 NS9530 is optimised for finishing and continuous cuts; for interrupted or heavy roughing operations, a tougher and possibly coated grade should be selected.

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.