TPGT 16T308 GT720 Wendeplatten - Tungaloy

Take advantage of the combination of precise surface quality, repeatable tool life and straightforward holder compatibility for consistent turning results; order the insert directly via Metav Werkzeuge or consult the technical team for application advice.

TPGT 16T308 GT720 Turning Insert by Tungaloy — triangular ISO insert for finishing and light turning

A TPGT16T308 GT720 ISO-standard triangular turning insert designed for finishing to light machining of steel, optimised for surface quality and dimensional stability.

• ISO triangular insert for standardised holders
• GT720 cermet for superior surface finish
• 0.8 mm corner radius for fine profiling
• Through-hole with countersink for secure clamping

Precision surface quality for finishing operations

The GT720 grade is a cermet developed for the finishing-to-light-machining range, prioritising surface finish and dimensional stability. The chemistry and edge preparation promote uniform wear, which helps sustain tolerances over longer tool life and reduces the need for frequent readjustment. For operations where part geometry and finish are decisive, this insert offers a controlled cutting edge that translates into fewer rejects and less rework, improving throughput in precision turning tasks.

Reliable compatibility and straightforward clamping

As an ISO-conforming insert, compatibility with a matching holder depends on form, 11° clearance angle, tolerance class, fastening and thickness. The insert’s geometry — triangular shape with a through-hole and countersink — simplifies secure seating and repeatable orientation in standard external holders or boring bars. Using the correct clamping hardware and paying attention to seat cleanliness ensures repeatable tool positioning, which directly benefits process stability and reduces setup time on single and serial production.

Productive machining and predictable tool life

The combination of the cermet grade and edge geometry supports consistent performance during finishing cuts. The single-sided chipbreaker helps control chip formation in typical steel turning, reducing the risk of surface blemishes and keeping chip flow predictable. Predictable wear behaviour leads to lower overall tooling cost per part: fewer changes, less downtime and stable surface quality across batch runs. These characteristics make the insert a practical choice for workshops seeking efficiency without sacrificing finish quality.

Application guidance and expert assistance for best results

This insert is intended for turning applications where high surface quality and consistent dimensional results are required; typical users include precision workshops and production turning departments. The TPGT16T308 GT720 performs best in finishing and light machining of steel when paired with a holder matched for geometry and stability. For assistance on holder selection, cutting parameters or batch optimisation, Metav Werkzeuge provides application support and product availability guidance to ensure the insert meets the process requirements.

Contact Metav Werkzeuge to specify the Tungaloy GT720 cermet insert for a particular turning task and confirm holder compatibility — call +49 2822 7131930 or email info@metav-werkzeuge.com for tailored advice and delivery options

Technical data

• Article number: 6851917
• Manufacturer SKU: TUN6851917
• Our SKU: 6851917-Tungaloy
• Name: TPGT16T308 GT720 Tungaloy insert

Dimensions and geometry

• Insert size: 16 mm
• Thickness: 3.97 mm
• Corner radius: 0.8 mm
• Clearance angle: 11°
• Included angle: 60°
• Hole style: through-hole with cylindrical hole + one-sided countersink (40°–60°)

Features and applications

• Grade: GT720 (cermet / coated cermet)
• Shape: triangular
• Chipbreaker: one-sided
• System: ISO turning insert; compatibility determined by holder form and tolerances
• Material: cemented carbide
• Application: turning; finishing to light machining of steel

FAQ

Which holder types fit this TRIANGULAR ISO insert?
The triangular ISO geometry requires holders designed for the TPGT form; compatibility is determined by insert shape, 11° clearance, thickness and fastening method — the TPGT16T308 GT720 fits standard ISO triangular seats when clamped correctly.

Is the GT720 grade suitable for finishing steel?
Yes, the GT720 cermet grade is specifically intended for finishing to light machining of steel, offering improved surface quality and consistent wear patterns.

Can the insert be used for internal turning (boring)?
The insert can be mounted in appropriate boring bars that accept ISO triangular inserts with the same seat and clamping specifications; ensure the toolholder provides sufficient rigidity for the intended cut.

What does the through-hole and countersink provide?
The through-hole plus one-sided countersink (40°–60°) facilitates secure clamping and repeatable seating in holders, contributing to process stability and reduced setup variation.

How does the 0.8 mm corner radius affect part finish?
The 0.8 mm corner radius gives a refined profile for fine contours and helps maintain surface integrity during finishing passes, balancing edge strength with minimal tool mark generation.

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.