DCMT 11T308 NS9530 Wendeplatten - Tungaloy

Benefit from precise finishing, low cutting forces and ISO compatibility for consistent production results; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

DCMT11T308 11T308 NS9530 turning insert by Tungaloy — rhombic 55° finishing geometry

DCMT11T308 NS9530 is an ISO rhombic turning insert designed for external and internal finishing operations on steel, offering a sharp cutting edge and a cermet composition optimised for continuous cuts.

• ISO rhombic insert DCMT11T308, 55° angle
• Uncoated cermet grade NS9530 for finishing
• Sharp cutting edge for low cutting forces
• 0.8 mm corner radius; one-sided chipbreaker

Achieve superior surface quality with a finishing-grade insert

The NS9530 grade is an uncoated cermet developed for finishing applications on steel, delivering a high surface finish with reduced cutting forces. Its sharp cutting edge helps to minimise burr formation and ensures stable tool behaviour during continuous cutting and small depths of cut. For process planners, this means fewer rework cycles and a predictable part finish when the geometry and cutting data are correctly matched to the workpiece.

Secure clamping and ISO compatibility reduce setup risk

The rhombic 55° geometry provides reliable engagement in common ISO holders while the insert’s form, 7° clearance, tolerance class, fixation and thickness determine compatibility with a given toolholder. The moderate 3.97 mm thickness and standard size make the insert straightforward to seat and clamp, helping to maintain repeatable tool offsets and consistent part accuracy across batches. Clear specification of holder type and mounting hardware avoids misfits and production delays.

Improved chip control and lower cutting forces for stable turning

A one-sided chipbreaker combined with a 0.8 mm corner radius promotes predictable chip formation during finishing passes and supports continuous chip evacuation in stable cut conditions. The tool’s geometry lowers instantaneous cutting forces, which reduces spindle and fixture loads and contributes to a steadier machining process. In practice, this translates into better surface integrity and prolonged tool life when operated within recommended cutting parameters.

System thinking for reliable process integration

As part of an ISO insert system, the insert must be used with a compatible external holder or boring bar, appropriate shim or clamp set and correct fastening screws. The carbide substrate offers the rigidity required for fine finishing, while the insert’s single-sided chipbreaker and hole with a cylindrical bore plus one-sided countersink (40°–60°) enable secure fastening. Selecting the correct grade and chipbreaker orientation for the machining strategy ensures economical, repeatable performance in small-depth finishing operations.

For tailored application recommendations or to request sample inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — our specialists can advise on cutter selection, holders and cutting data for Tungaloy NS9530 finishing inserts

Technical data

• Article number: 6998488

• Manufacturer SKU: TUN6998488

• SKU: 6998488-Tungaloy

• Designation: DCMT11T308 NS9530

• Model series: ISO turning inserts

• Material: carbide

Specifications

• Insert size: 11

• Cutting edge angle: 55°

• Clearance angle: 7°

• Corner radius: 0.8 mm

• Plate thickness: 3.97 mm

Features

• Rhombic plate form

• With hole: cylindrical hole + one-sided countersink (40°–60°)

• One-sided chipbreaker

• Uncoated cermet grade NS9530

• Application: turning (external and internal)

FAQ

What materials is this insert suitable for?
The DCMT11T308 NS9530 turning insert is intended primarily for finishing operations on steel and is optimised for continuous cuts with small depths of cut.

How does the NS9530 grade affect surface finish?
The NS9530 uncoated cermet provides a sharp cutting edge and low cutting forces, which together produce improved surface integrity and reduced need for secondary finishing.

Which holders are compatible with this insert geometry?
Compatibility depends on holder form, clearance angle, tolerance class, fixation, size and thickness; the insert is ISO‑standard and fits standard rhombic 55° external holders when matched correctly.

What is the purpose of the one-sided chipbreaker?
The one-sided chipbreaker promotes controlled chip formation in finishing passes, aiding continuous chip flow and helping to maintain a stable cutting process.

Can this insert be used for internal turning?
Yes, the insert is suitable for both external and internal turning applications when used in an appropriate boring bar or internal holder designed for ISO rhombic 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.