DCMT 11T308 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of fine finishing performance, low cutting forces, and ISO-standard compatibility for reliable turning processes; order the insert directly via Metav Werkzeuge or ask our consultants for guidance.

DCMT 11T308 NS9530 Tungaloy indexable turning insert — fine finishing, low cutting forces

DCMT 11T308 NS9530 is an ISO-standard rhombic indexable insert designed for finishing turning operations on steel, offering a sharp cutting edge and stable chip control.

• Fine finishing grade NS9530
• Sharp cutting edge, low cutting forces
• ISO rhombic form, 11 mm size
• Cylindrical hole with single-sided countersink

Achieve consistently superior surface finish with low cutting resistance

The NS9530 grade is an uncoated cermet developed for fine finishing on steel, providing a sharp edge that reduces friction and generates minimal built-up edge. This results in a consistent surface quality and reliable dimensional accuracy in continuous feed conditions. Reduced cutting resistance means lower tool-induced vibration and improved process stability, which contributes to longer uninterrupted cutting times and fewer part reworks. The combination of a refined cutting edge and the single-sided chipbreaker supports predictable chip formation during small depths of cut, making the insert particularly suitable for finishing passes where surface integrity is critical.

ISO compatibility and clamping: straightforward integration into existing toolholders

The rhombic geometry and ISO coding ensure clear compatibility with standard turning holders; form, relief angle, tolerance class, attachment, size and thickness determine proper fit. The insert features a 7° relief angle and a 55° wedge angle, with an 11 mm plate size and 3.97 mm thickness, allowing straightforward replacement in ISO seats designed for DCMT-style geometry. The cylindrical hole with a single-sided countersink (40°–60°) offers secure clamping and repeatable positioning. Specifying holders and clamping kits that match these parameters guarantees optimal seat contact and axial support, which in turn preserves the sharp edge and prevents fretting or movement under finish-cut conditions.

Practical advantages for production: stability, predictability and efficient finishing

Choosing this grade and geometry lowers the risk of chatter and enables tighter tolerances on turned parts thanks to the insert’s sharp edge and stable chip control. For operations requiring predictable outcomes—such as batch finishing of shafts—the insert supports repeatable surface results and reduced secondary operations. The design encourages efficient cycle times for finishing passes without sacrificing surface quality. For process planning, pairing the insert with a suitable holder and steady cutting parameters yields an economical balance between tool life and part quality. If selection between grades or chipbreakers is uncertain, Metav Werkzeuge’s technical team can advise on matching the insert to the workpiece material and machining strategy.

Contact Metav Werkzeuge for technical advice or to arrange a sample pack tailored to finishing applications; Metav Werkzeuge can provide immediate assistance and specification support.

Technical data

• Article number: 6789580
• Manufacturer SKU: TUN6789580
• SKU: 6789580-Tungaloy
• Model series: ISO turning indexable inserts
• Name: DCMT11T308 NS9530 Tungaloy indexable insert

Facts

• Plate size: 11 mm
• Thickness: 3.97 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Wedge angle: 55°
• Hole: with hole

Special features

• Uncoated cermet grade NS9530
• Rhombic plate form (DCMT)
• One-sided chipbreaker
• Cylindrical hole + single-sided countersink (40°–60°)
• Application: turning, finishing on steel
• Compatibility determined by form, relief angle, tolerance class, attachment, size and thickness

FAQ

What materials is this insert best suited for?
The DCMT 11T308 NS9530 Tungaloy indexable insert is optimised for finishing on steel and delivers high surface quality under continuous cutting conditions.

How is the insert secured in the toolholder?
Clamping uses the central cylindrical hole with a single-sided countersink (40°–60°); the DCMT geometry fits ISO-standard holders that match the stated form, relief angle and thickness.

What chip control can be expected with this grade?
The one-sided chipbreaker combined with the NS9530 cermet grade promotes stable chip formation and predictable evacuation during finishing cuts.

Is this insert suitable for interrupted cuts?
The grade is primarily a finishing grade for continuous cuts and small depths of cut; for heavily interrupted machining a different chipbreaker or grade may be preferable.

Which parameters influence compatibility with existing holders?
Compatibility depends on form, relief angle, tolerance class, attachment method, plate size and thickness as noted; ensure holders are specified for DCMT-style inserts.

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.