SPMR 120308 T9225 Wendeplatten - Tungaloy

Take advantage of a CVD‑coated carbide grade designed for robust, mid-to-heavy steel turning and ISO compatibility; the T9225 specification delivers toughness for variable and slightly interrupted cuts while the square SPMR120308 geometry with a 0.8 mm corner radius ensures repeatable seating and secure clamping. Order directly via Metav Werkzeuge or contact the consultants for tailored application advice.

SPMR 120308 T9225 SPMR Turning Insert – Tungaloy (CVD‑coated carbide, 11° relief)

SPMR 120308 T9225 is an ISO‑standard square turning insert engineered for external and internal turning where robustness and reliable edge life are required

• CVD‑coated carbide grade T9225
• For medium to heavy steel turning
• ISO‑standard square insert
• 11° relief angle for stable engagement

Consistent cutting performance for robust steel turning

The insert pairs a CVD‑coated surface with a carbide substrate to balance wear resistance and toughness. This combination, reflected in the T9225 designation, reduces flank and crater wear under mixed cutting conditions and extends in‑service life where feed and depth of cut vary. The square geometry and the defined 0.8 mm corner radius help maintain cutting edge stability, which supports consistent part tolerances and fewer tool changes, improving overall process efficiency and uptime.

Straightforward ISO compatibility and secure clamping

Designed to the ISO designation, the insert's form, 11° clearance, size and thickness determine compatibility with matching holders and boring bars. The listed dimensions — 12 mm across the insert, 3.18 mm thickness and the holeless design — should be checked against the toolholder seat, clamp type and tolerance class before selection. Correct pairing of holder and insert simplifies set‑up, reduces vibration and preserves repeatable seating, which in turn improves surface finish and cycle‑time stability.

Built for interrupted cuts and variable engagement

The T9225 grade is a universal, robust choice for medium to heavy steel machining and performs well under slightly interrupted cutting conditions. The one‑sided chipbreaker supports controlled chip formation and evacuation in common turning operations, reducing the risk of edge chipping when cut conditions fluctuate. This makes the insert suited to batch production and mixed‑geometry parts where short interruptions or changes in engagement occur.

Handling, indexing and operational advice

The holeless, square plate is indexed according to the geometry of the seat and requires the correct clamp or pocket to ensure positive locking. The insert’s form supports multiple usable edges when indexed; care during clamping prevents deformation and preserves repeatable accuracy. For best results, match the insert grade and chipbreaker to workpiece material and rigidity of the machine set‑up. If in doubt, consult the application data from the toolholder manufacturer or request cutting parameter guidance from Metav Werkzeuge.

For application advice, stock information or recommendations for Tungaloy T9225 inserts contact Metav Werkzeuge at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 6781149
• Manufacturer SKU: TUN6781149
• SKU: 6781149-Tungaloy
• ISO designation: SPMR120308

Core dimensions and measurable data

• Insert size: 12 mm
• Thickness: 3.18 mm
• Corner radius: 0.8 mm
• Relief angle: 11°
• Geometry angle: 90°
• Hole style: without hole

Designs and special features

• Coating: CVD‑coated
• Substrate: carbide
• Grade: T9225
• Chipbreaker: one‑sided
• Shape: square
• Application: external and internal turning
• Typical system: ISO turning insert with matching holder, shim and clamp set

FAQ

Is this insert suitable for turning steel? Yes. The SPMR120308 T9225 insert is specified as a robust universal grade for mid‑to‑heavy steel turning and is optimised for variable engagement and slightly interrupted cuts.

Which dimensions are essential to check for holder compatibility? Check the insert size (12 mm), thickness (3.18 mm), 0.8 mm corner radius and the 11° relief angle; confirm the seat form and tolerance class of the intended holder against these values before mounting the insert.

What coating and substrate are used on this insert? The insert uses a CVD‑coated carbide substrate; the T9225 coating/substrate combination is selected for balanced wear resistance and toughness in steel machining.

Is the chipbreaker suitable for interrupted cuts? Yes. The one‑sided chipbreaker combined with the robust T9225 grade supports controlled chip formation and greater resistance to edge chipping under lightly interrupted or variable cutting conditions.

For which turning operations is this insert intended? The design and geometry are intended for both external and internal turning tasks within ISO‑standard tool systems, offering versatility for a range of production and maintenance turning applications.

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.