RNMG 090300 T9225 Wendeplatten - Tungaloy

Take advantage of a CVD-coated carbide grade that balances toughness and wear resistance for medium to heavy steel turning; the ISO-standard geometry ensures straightforward compatibility with standard holders when form, relief angle and thickness match. Order original Tungaloy inserts directly via Metav Werkzeuge or consult our team for holder matching and cutting-condition advice.

RNMG 090300 T9225 – Indexable turning insert by Tungaloy (CVD-coated carbide, chipbreaker 61)

RNMG090300-61 T9225 is an ISO-standard indexable turning insert designed for external and internal turning in steel applications, offering a robust universal grade for medium to heavy cutting conditions

• ISO-standard RNMG insert size 09
• CVD-coated carbide grade T9225
• 0° relief angle with cylindrical hole
• Chipbreaker 61 optimised for steel turning

Reliable performance for mixed and interrupted cuts

The combination of CVD-coated carbide and the T9225 grade provides a balance of hardness and toughness that is suited to moderate-to-heavy steel machining and variable engagement conditions. The coating improves wear resistance at elevated temperatures, while the substrate carbide retains edge integrity during slight interruptions. This results in consistent tool life and reduced edge chipping compared with uncoated substrates, supporting predictable machining cycles and fewer unscheduled insert changes.

Compatibility and secure clamping for steady results

Compatibility with tool holders is determined by geometry: the insert form, 0° relief angle, tolerance class, fixing style, size and 3.18 mm thickness must match the holder specification. The RNMG form and its cylindrical hole enable secure clamping in many ISO-style external holders and boring bars. Choosing the correct holder and tightening sequence stabilises the cutting edge, reduces vibration and improves surface finish, particularly when facing varying depths of cut.

Why the chipbreaker and round form matter

The chipbreaker 61 is tuned for steel applications to produce controlled chips and reliable evacuation in through‑feed and interrupted cuts. The round plate form distributes cutting forces more evenly, which helps in applications where component support or tool rigidity is variable. Together, these design features lower the risk of built-up edge and support continuous productivity in shop-floor turning operations.

Practical advantages for production shops

Using this insert in a matched system—ISO insert, compatible external holder or boring bar, backing/shim and correct clamp screw—delivers a practical, cost-effective solution for repetitive turning tasks. The ISO-standard designation simplifies reordering and inventory management, while the CVD coating and universal grade reduce the need for frequent grade changes across mixed steel batches. If additional data or holder recommendations are required, technical assistance is available by email or phone: info@metav-werkzeuge.com, +49 2822 7131930

Contact Metav Werkzeuge for original Tungaloy RNMG090300-61 inserts and expert advice on holder matching and cutting parameters

Technical data

• Article number: 6780937
• Manufacturer SKU: TUN6780937
• SKU: 6780937-Tungaloy
• Model series: ISO-indexable turning inserts
• Product designation: RNMG090300-61 T9225

Facts

• Thickness: 3.18 mm
• Size: 09
• ISO code: 090300
• Relief angle: 0°
• Chipbreaker: 61

Special features

• Material: CVD-coated carbide
• Grade: T9225 (robust universal grade)
• Plate form: round
• Hole: with cylindrical hole
• Application: turning (external and internal)
• Suitable system: insert + holder/boring bar + backing/shim + clamp screw

FAQ

What machining tasks is this insert intended for? This RNMG090300-61 T9225 indexable insert (Tungaloy, SKU 6780937-Tungaloy) is intended for external and internal turning of steel where medium to heavy cuts or slightly interrupted cuts require a tougher grade.

How does the T9225 grade affect performance? The T9225 grade combines a tough substrate with a CVD coating, so the insert maintains edge strength under variable engagement and offers improved wear resistance for prolonged cutting in steel.

Which holders are compatible with this insert? Compatibility is determined by insert form, size, 0° relief angle, thickness (3.18 mm) and hole style; using an ISO-compatible external holder or boring bar matched to RNMG geometry ensures secure clamping and optimal performance.

Is the chipbreaker suitable for difficult chip control situations? Yes, the chipbreaker 61 is optimised for steel turning and supports controlled chip formation and evacuation in both continuous and slightly interrupted cuts.

Can this insert be used for stainless or non-ferrous materials? The RNMG090300-61 is specified for steel machining in its design intent; for other materials different grades or chipbreakers may be more appropriate.

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.