TPMN 160312 NS740 Wendeplatten - Tungaloy

Benefit from a combination of advanced Cermet NS740 grade and ISO compatibility to achieve consistent surface quality and prolonged tool life; the triangular geometry with a 1.2 mm corner radius supports finishing and light turning tasks with stable wear characteristics. Order the inserts directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

TPMN 160312 NS740 — Tungaloy triangular indexable insert for turning

The TPMN160312 NS740 is an ISO-standard triangular indexable insert designed for turning, optimised for finishing and light machining of steel with an emphasis on surface quality and dimensional control

• ISO-standard triangular insert
• Cermet grade NS740 for finishing
• 1.2 mm corner radius for fine faces
• 11° clearance angle, 3.18 mm thickness

Precision finishing for higher surface quality

The triangular indexable design delivers a consistent cutting geometry that supports precision results in face and cylindrical turning operations. Manufactured in a cermet substrate and specified as NS740, this grade is developed for finishing to light machining where surface finish and dimensional accuracy are paramount. The insert’s geometry and material properties reduce tendency to built-up edge and provide a uniform wear pattern, which helps to minimise rework and inspection cycles.

Material guidance and suitable applications

Engineered primarily for the machining of steel, the insert’s composition and coating strategy make it particularly suited to achieving stable results during finishing passes. The NS740 sort is optimised to deliver consistent performance across common steel grades, offering predictable flank wear and good tolerance retention. For users transitioning from general-purpose grades, this insert reduces the need for repeated adjustments and supports tighter process windows during final passes.

Design details that ensure compatibility and rigidity

The indexable plate conforms to ISO dimensions and features a triangular insert form with a corner radius of 1.2 mm and a clearance angle of 11°, providing a balance between edge strength and the fine edge required for smooth surfaces. The 3.18 mm plate thickness and the absence of a mounting hole mean compatibility must be checked against the holder by form, free angle, tolerance class, fixation method, size and thickness. This standardised approach simplifies tool inventory management and ensures interchangeability across compliant toolholder systems.

Process efficiency and lifecycle benefits

Using a dedicated finishing cermet grade such as NS740 can shorten cycle times on final passes by allowing slightly increased feed or reduced pass count while maintaining surface requirements. The material’s wear characteristics promote a predictable tool life, enabling better planning of tool changes and reducing downtime. In practice, the result is a steadier production flow and a lower rate of scrapped components during final machining operations.

Discuss application-specific recommendations for Tungaloy inserts with Metav Werkzeuge to ensure optimal cutting parameters and holder compatibility; contact Metav Werkzeuge by e-mail at info@metav-werkzeuge.com or by phone at +49 2822 7131930 for tailored advice and fast delivery

Technical Data

• Article number: 6821544
• Manufacturer SKU: TUN6821544
• Model series: ISO indexable turning inserts
• Designation: TPMN160312
• Grade: NS740

Facts

• Diameter / size: 16 mm
• Thickness: 3.18 mm
• Corner radius: 1.2 mm
• Clearance angle: 11°
• Included angle: 60°

Special features

• Material: cemented carbide substrate
• Coating / grade: cermet / coated cermet (NS740)
• Insert form: triangular
• Application: turning (finishing to light machining)
• Mounting: without hole
• Chipformer: without

FAQ

What applications are best suited for this insert?
The TPMN160312 NS740 insert is designed for turning applications, specifically finishing and light machining of steel where enhanced surface finish and dimensional accuracy are required.

Is this insert compatible with standard ISO toolholders?
Yes. The insert is ISO-standardised; compatibility depends on holder form, free angle, tolerance class, fixation method, size and thickness—ensure the holder matches the TPMN160312 dimensions.

What does the NS740 grade offer compared with general-purpose grades?
The NS740 cermet grade provides improved wear uniformity and superior surface quality in finishing operations compared with many general-purpose grades, helping to maintain tolerances and reduce rework.

Which geometric parameters affect edge strength and finish?
The 1.2 mm corner radius, 11° clearance angle and 60° included angle balance edge durability and the fine cutting edge needed for smooth surfaces, influencing both tool life and finish quality.

Can the insert be used for roughing passes?
This grade and geometry are targeted at finishing to light machining; for heavy roughing, a more robust grade or a different geometry is recommended to withstand higher forces.

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.