DCMT 070204 NS9530 Wendeplatten - Tungaloy

Take advantage of precise finishing with the NS9530 uncoated cermet grade and a 0.4 mm nose radius for low cutting forces and superior surface quality; order the insert directly via Metav Werkzeuge or consult our technical advisors for application-specific recommendations.

DCMT 070204 NS9530 Tungaloy turning insert — rhombic ISO finishing insert, 0.4 mm radius

The DCMT070204 NS9530 is an ISO‑standard rhombic turning insert intended for external and internal turning, optimised as a finishing grade for steel with a sharp cutting edge and low cutting forces.

• ISO rhombic turning insert, DCMT form
• Uncoated cermet NS9530 finishing grade
• 0.4 mm nose radius for fine surface finish
• Cylindrical hole with single-sided countersink

High‑precision finishing with low cutting forces

The DCMT070204 NS9530 insert is designed as a finishing solution for steel, combining a sharp cutting edge with the uncoated cermet NS9530 composition to reduce cutting forces and improve surface integrity. The material choice and geometry make the insert particularly suitable for continuous cuts and small depths of cut, where vibration is limited and surface quality is paramount. For shops aiming to reduce subsequent polishing or grinding, this finishing grade helps deliver consistent part quality and reduces rework time.

Reliable fit and secure clamping for continuous production

Compatibility with the toolholder depends on the insert’s form, tolerance class, clearance geometry and mounting features. The ISO-standard form and the rhombic plate shape ensure predictable seating in matched holders, while the cylindrical hole with a single-sided countersink (40°–60°) provides secure clamping and repeatable indexing. This mechanical consistency supports stable cutting conditions and contributes to higher machine uptime through fewer tool‑related interruptions.

Geometry that enhances surface quality and process stability

A 0.4 mm nose radius paired with a 7° clearance angle and a 2.38 mm plate thickness provides a balance between rigidity and delicacy at the cutting edge. The modest radius yields a fine finish without excessive cutting forces, while the clearance geometry reduces rubbing and heat build‑up on the flank face. In practice, these features mean improved surface roughness values and steady performance across short production runs and small batch manufacture.

Practical selection and application guidance

Select the appropriate holder and mount based on workpiece material, required stability and the finishing orientation. The single-sided chipbreaker is tailored for finishing cuts in steel and performs best with stable setups for external and internal turning. Where interrupted cuts or heavy vibrations occur, consider a more robust grade or a different chip control geometry. For complex applications, referring to the grade’s behaviour under continuous cut conditions helps determine feeds and speeds that protect the edge while achieving the desired surface finish.

Contact Metav Werkzeuge today for tailored application advice and to secure Tungaloy finishing inserts that combine excellent surface quality with low cutting forces

Technical data

• Article number: 6945255
• Manufacturer article number: 6945255
• SKU: 6945255-Tungaloy
• Manufacturer SKU: TUN6945255
• Model series: ISO-Drehwendeschneidplatten
• Designation: DCMT070204 NS9530 Tungaloy-Wendeplatte

Facts

• Cutting angle: 55°
• Nose radius: 0.4 mm
• Clearance angle: 7°
• Plate thickness: 2.38 mm
• Plate size: 07

Special features

• Rhombic plate form
• Uncoated cermet NS9530 finishing grade
• Single-sided chipbreaker
• Cylindrical hole with single-sided countersink (40°–60°)
• Intended application: turning (external and internal)

FAQ

What materials is this insert intended for?
The DCMT070204 NS9530 insert is specified as a finishing grade for steel, delivering low cutting forces and improved surface quality when used in continuous cutting applications.

Can the insert be used for internal turning as well as external turning?
Yes, the geometry and hole configuration permit both external and internal turning where a finishing cut is required and the setup provides sufficient stability.

What does the NS9530 grade offer compared with coated grades?
The NS9530 uncoated cermet grade emphasises a sharp cutting edge and high surface quality for finishing; it is optimised for continuous cuts and small depths of cut rather than aggressive roughing operations.

How does the 0.4 mm nose radius affect part finish and tool life?
A 0.4 mm nose radius produces finer surface finishes at moderate feed rates and reduces peak forces on the cutting edge, but the radius should be matched to the feed and depth of cut to avoid excessive edge loading.

Is the insert compatible with all DCMT holders?
Compatibility depends on the holder’s compliance with ISO form, tolerance class, seat geometry and clamping method; the insert’s ISO designation and hole style enable use with matching holders that follow the same standards.

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.