TNMG 220408 T9225 Wendeplatten - Tungaloy

Take advantage of the CVD-coated carbide T9225, the ISO-compliant TNMG geometry and the 0.8 mm nose radius for consistent chip control and long tool life; order original Tungaloy inserts directly via Metav Werkzeuge or consult our specialists for application support.

TNMG 220408 T9225 turning insert — triangular ISO insert for medium to heavy steel turning by Tungaloy

TNMG220408 T9225 is a triangular ISO turning insert designed for robust, variable cutting conditions in medium to heavy steel machining, offering reliable edge security and predictable wear behaviour

• CVD-coated carbide grade T9225
• Universal grade for medium–heavy steel machining
• Triangular ISO TNMG, 60° included angle
• 0.8 mm nose radius, double-sided chipbreaker

High cutting performance where stability varies

The CVD-coated carbide composition of this insert delivers a balance of hardness and toughness that suits interrupted cuts and changing engagement conditions. The T9225 grade is specified as a robust universal grade, which means predictable wear progression and reliable edge life in a range of steel grades; this reduces the need for frequent insert changes and supports steady production cycles. The integrated double-sided chipbreaker promotes controlled chip formation and evacuation, which lowers cutting forces and contributes to consistent surface finish on turned parts.

Precise fit and standardised geometry for easy integration

The insert follows ISO TNMG geometry and a 60° included angle, ensuring straightforward compatibility with ISO holders when form, clearance angle, tolerance class, fastening, size and thickness match. The insert dimensions — nominal 22 mm across the flats and a plate thickness of 4.76 mm — combine with a cylindrical central hole to permit secure clamping and repeatable seating. The specified clearance angle of 0° and the defined nose radius of 0.8 mm are critical parameters when selecting a matching cutter body; correct pairing minimises run-out and helps achieve the targeted surface quality with minimal adjustment.

Practical system assembly and application guidance

Used for both external and internal turning operations, this indexable insert forms part of a system that includes the appropriate outside holder or boring bar, a shim or clamp set and replacement screws. Choosing the correct chipbreaker and the T9225 grade should be guided by material, machining strategy and machine rigidity: heavier cuts and unstable engagement favour a tougher grade and a chipbreaker geometry that supports positive chip formation. For workshops seeking repeatability and uptime, the standardised form and industrial grade make this insert a pragmatic choice for varied production tasks.

Contact Metav Werkzeuge for tailored recommendations on Tungaloy inserts and system compatibility, or request precise application advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6780933
• Manufacturer SKU: TUN6780933
• SKU: 6780933-Tungaloy
• Brand: Tungaloy
• Designation: TNMG220408 T9225 Tungaloy turning insert

Facts

• Size across flats: 22 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Included angle: 60°
• Clearance angle: 0°
• Manufacturer article number: 6780933

Special features

• Material: carbide
• Coating/grade: CVD-coated carbide, T9225
• Shape: triangular (TNMG)
• Chipbreaker: double-sided
• Hole: with cylindrical hole
• Application: turning
• Model series: ISO turning indexable inserts

FAQ

What materials is this insert suitable for?
The Tungaloy TNMG220408 T9225 turning insert is optimised for medium to heavy steel machining and offers robust performance across a range of steel alloys.

How does the chipbreaker affect machining?
The double-sided chipbreaker on this TNMG insert promotes controlled chip formation, which improves chip evacuation and helps maintain consistent surface finish during external and internal turning.

Is the TNMG220408 compatible with standard ISO holders?
Compatibility requires matching form, clearance angle, tolerance class, fastening method, size and thickness; the TNMG220408 follows ISO geometry and uses a cylindrical central hole for secure clamping.

What is the advantage of the T9225 grade?
T9225 is a robust universal grade with CVD coating, designed to provide improved toughness for interrupted cuts and variable engagement, supporting longer edge life under mixed conditions.

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.