TNMG 220412 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of robust CVD-coated carbide, a 60° triangular geometry and a 1.2 mm nose radius for reliable performance in interrupted turning operations; order the insert directly via Metav Werkzeuge or contact the consultants for application advice.

TNMG 220412 T9235 TNMG turning insert — CVD-coated carbide, 60° — Tungaloy

The TNMG 220412 T9235 is an ISO-standard triangular turning insert designed for external and internal turning of steel where interrupted cuts, unstable setups or lower cutting speeds demand a tougher grade and reliable edge stability.

• CVD-coated carbide grade T9235
• 60° triangular geometry, 1.2 mm nose radius
• Double-sided insert with cylindrical hole

Consistent cutting under unstable conditions

The combination of a CVD-coated surface and a carbide substrate makes this grade especially suited to challenging turning tasks. The T9235 specification is a tougher cutting grade developed for steel machining at lower cutting speeds and in situations with interrupted cuts or less rigid set-ups; this results in fewer unexpected tool failures and more predictable process windows. The design focuses on keeping the cutting edge intact under shock loads, so productivity is maintained even when rigidity is limited.

Clear material compatibility and controlled chip formation

Selected for use with steel, the grade provides stable chip formation when combined with the correct chipbreaker and cutting parameters. The CVD layer improves wear resistance and heat tolerance, which means that the insert sustains cutting forces longer before a change is necessary. This behaviour translates into longer effective tool life and less frequent index operations, helping to reduce non-productive time on the shop floor while preserving surface quality on the workpiece.

Geometry and mounting that support fast indexing

The triangular plate form with a 60° included angle and a 1.2 mm nose radius gives a balance between strength and finishing capability. The insert is double-sided, allowing two usable edges per index, and comes with a cylindrical hole for secure clamping in ISO-compatible holders or boring bars. Plate thickness is 4.76 mm and the inscribed circle is 22 mm, providing a robust platform that fits common external holders and internal boring systems. This straightforward system approach reduces setup complexity and shortens changeover time.

Productivity through predictable performance and simple system integration

By choosing a tougher grade and an ISO-standard geometry, shops gain a measurable advantage in cycle consistency and process reliability. The insert’s characteristics are particularly beneficial where interrupted cuts or variable feed rates are common: the result is fewer scrap parts and reduced downtime. For best results, match the T9235 grade with a chipbreaker suited to the specific steel grade and the expected stability of the machine; this small optimisation often yields significant improvements in both tool life and surface finish.

For reliable turning with Tungaloy's T9235 grade, contact Metav Werkzeuge for purchase and tailored technical advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Manufacturer article number: 6785898
• SKU: 6785898-Tungaloy
• Manufacturer SKU: TUN6785898
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall
• Grade: T9235

Core specifications

• Plate designation: TNMG220412
• Inscribed circle: 22 mm
• Plate thickness: 4.76 mm
• Nose radius: 1.2 mm
• Included angle: 60°
• Free clearance angle: 0°
• Hole: with cylindrical hole

Features & Applications

• CVD-coated carbide
• Double-sided indexable insert
• Triangular plate form
• Intended application: turning (external and internal)
• Suited to interrupted cuts and unstable conditions
• System components: insert, holder/boring bar, shim/clamping set, spare screws

FAQ

What materials is this insert suitable for? The TNMG 220412 T9235 is specified for machining steel and performs well with interrupted cuts or when lower cutting speeds are used.

How many usable edges does the triangular insert provide? The double-sided triangular design offers multiple indexable edges; each indexing extends usable life before replacement.

What does the T9235 grade mean for tool life? T9235 denotes a tougher CVD-coated carbide grade that favours edge stability in unstable conditions, typically extending effective life in such applications.

Is the insert compatible with standard ISO turning holders? Yes, the insert follows ISO geometry and fits holders and boring bars that match the TNMG220412 form, thickness and hole configuration.

Which nose radius and included angle are provided and what are their benefits? The insert has a 1.2 mm nose radius and a 60° included angle, offering a good compromise between strength for roughing and the capability to achieve acceptable surface finishes.

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.