RNMG 250900 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of robust CVD‑coated carbide, an ISO‑standard RNMG form and predictable chip control for reliable medium‑to‑heavy turning operations; order the insert directly via Metav Werkzeuge or consult our advisors for matching holders and clamping components.

RNMG250900-61 250900 T9225 — ISO turning insert for Turning by Tungaloy

A RNMG250900-61 T9225 indexable insert designed for robust, medium‑to‑heavy steel turning where variable engagement and light interruptions demand increased toughness.

• ISO‑standard RNMG insert for universal turning
• CVD‑coated carbide grade T9225 for toughness
• 0° relief angle with cylindrical central hole
• 25 mm round form, 9.52 mm plate thickness

Stable cutting performance for demanding steel turning

The combination of a CVD‑coated carbide substrate and the T9225 grade delivers a balance between wear resistance and toughness, making the insert particularly suited to medium‑to‑heavy steel machining. The supplied chipbreaker designation 61 is engineered to provide controlled chip formation under varying cut conditions; in practice this leads to fewer interruptions for chip clearing and a more consistent surface finish. The construction supports a stable cutting edge life under moderately interrupted cuts, which helps maintain process reliability on production lathes.

Clear compatibility and secure mounting for reliable setup

Compatibility with toolholders is defined by the insert’s geometry: form, 0° relief angle, tolerance class, clamping style, size and 9.52 mm thickness. The insert features a cylindrical central hole for positive locating with compatible clamping sets and replacement screws. When choosing the matching outer holder or boring bar, ensure the holder accepts the RNMG form and the ISO code 250900 to guarantee secure fixturing and repeatable positioning during index changes.

Predictable tool life and maintenance advantages

A universal sort like T9225 reduces the need for multiple grades across mixed batch runs, simplifying inventory while maintaining productivity. The CVD coating enhances wear performance on steel, so tool changes become a planned, predictable operation rather than an emergency stop. Where tool life extension is critical, the insert’s combination of coating and substrate assists in reducing unplanned downtime and supports steady machining cycles with consistent component quality.

Choosing the right insert for your turning strategy

This ISO series functions as a system: an RNMG plate, a compatible outer holder or boring bar, a backing plate or clamp set, and replacement screws. Select the chipbreaker and grade according to the workpiece material, depth of cut and stability of the setup. For external and internal turning tasks where engagement fluctuates, this insert offers a pragmatic compromise between toughness and wear resistance that suits jobbing shops and production lines alike.

For original Tungaloy RNMG250900-61 T9225 inserts and advice on holder compatibility, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 to request tailored recommendations and availability.

Technical data

• Article number: 6781304
• Manufacturer SKU: TUN6781304
• SKU: 6781304-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Name: RNMG250900-61 T9225 Tungaloy-Wendeplatte

Facts

• Plate size: 25 mm
• Plate thickness: 9.52 mm
• Relief angle: 0°
• Chipbreaker: 61
• ISO code: 250900
• Central hole: cylindrical

Special features

• CVD‑coated carbide (grade T9225)
• Round plate form (RNMG)
• Designed for turning (external and internal)
• Compatibility determined by form, tolerance, clamping and size
• Robust universal grade for medium‑to‑heavy steel machining

FAQ

What materials is this insert suitable for?
The RNMG250900-61 with grade T9225 is specified as a robust universal sort for steel machining, particularly for medium‑to‑heavy cuts and where light interruptions or variable engagement demand higher toughness.

Which toolholders fit this RNMG insert?
Compatibility depends on the holder accepting the RNMG form, the 250900 ISO code, the 0° relief angle, the plate thickness of 9.52 mm and the central cylindrical hole; choose a matched outer holder or boring bar accordingly.

What does the chipbreaker 61 provide?
Chipbreaker 61 is optimised for controlled chip formation and evacuation under varying cutting conditions, improving process stability and contributing to a consistent surface finish.

Can this insert be used for internal turning as well as external turning?
Yes — the model series is suitable for both external and internal turning, provided the selected holder and boring bar are compatible with the RNMG geometry and clamping method.

Is the RNMG250900-61 an ISO‑standardised insert?
Yes, the RNMG250900-61 conforms to the ISO‑standard series for indexable turning inserts and is intended to fit ISO‑compliant holders and clamping systems.

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.