SNMG 120408 T9215 Wendeplatten - Tungaloy

High wear resistance from the CVD‑coated carbide T9215, combined with a stable 0.8 mm corner radius and a square ISO form, supports productive medium‑steel turning with reliable edge life. Order the SNMG120408 T9215 indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

SNMG 120408 T9215 turning indexable insert (ISO) – CVD‑coated carbide, 0.8 mm radius (Tungaloy)

The SNMG120408 T9215 is an ISO‑standard square indexable insert for external and internal turning, optimised for productive machining of medium steel in continuous to light interrupted cuts.

• CVD‑coated carbide for high wear resistance
• Double‑sided chipbreaker for reliable chips
• ISO SNMG120408 square format, with hole
• 0.8 mm corner radius for stable edge life

Engineered for productive medium‑steel turning

The T9215 grade combines a CVD‑coated surface with a tough carbide substrate to deliver a balance of wear resistance and fracture toughness. This makes the insert particularly suitable for sustained production work on medium‑strength steels where consistent tool life and predictable performance are priorities. The design aims to reduce unplanned downtime by offering stable cutting edges that tolerate continuous or slightly interrupted cuts, so machining cycles remain efficient and repeatable. Benefits are expressed in longer intervals between indexings and fewer tool changes, improving overall process throughput.

Compatibility and system guidance for secure clamping

The insert is an ISO‑design SNMG geometry; compatibility with a toolholder depends on several mechanical factors: the insert form, the relief angle, tolerance class, method of fastening, overall size and thickness. Check the holder specification against the SNMG120408 dimensions and the 0° relief/clearance angle to ensure correct seating and clamping. Matching the insert to the correct outside holder or boring bar, plus the appropriate shim and clamp set, secures repeatable location and consistent cutting conditions, which in turn stabilises surface finish and dimensional accuracy.

Geometry, chip control and edge stability

Square plate geometry with a 0.8 mm corner radius provides a compromise between a robust cutting edge and acceptable corner wear progression. The double‑sided chipbreaker assists in forming short, controllable chips across a range of feeds, reducing the risk of long swarf and improving cycle safety. A cylindrical centre hole ensures firm axial and radial clamping in compatible holders. With a plate thickness of 4.76 mm and a 12 mm nominal size, the insert offers mechanical stiffness that supports higher metal removal rates while maintaining dimensional stability at the cutting edge.

Coating, substrate and recommended applications

The CVD‑coating provides a hard, wear‑resistant surface that resists abrasive wear and preserves the integrity of the cutting edge under elevated temperatures. The underlying carbide substrate contributes fracture resistance, a necessary attribute when working with continuous cuts or slight interruptions. This combination is why the grade is recommended as a first choice for medium steel turning tasks. For best results, pair the insert with cutting parameters and coolant strategy aligned to the workpiece material and machine rigidity; this will harness the grade’s productivity potential while maintaining surface quality.

For application‑specific recommendations on Tungaloy turning inserts such as the SNMG120408 T9215, contact Metav Werkzeuge for a tailored selection or machining proposal via info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6772297
• Manufacturer SKU: TUN6772297
• SKU: 6772297-Tungaloy
• Brand: Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Dimensions & geometry

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Clearance/relief angle: 0°
• Included hole: cylindrical

Special features

• CVD‑coated carbide
• Grade T9215
• Double‑sided chipbreaker
• Square plate form (SNMG)
• Cylindrical centre hole for clamping
• For external and internal turning
• Compatibility depends on form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What materials is this insert best suited for?
The Tungaloy SNMG120408 T9215 insert is optimised for medium‑strength steel and is specified as a first choice where wear resistance and fracture toughness must be balanced.

Can the SNMG120408 be used for interrupted cuts?
Yes, the T9215 grade tolerates continuous to light interrupted cutting; however, heavier interruptions may require a different geometry or grade designed specifically for interrupted machining.

How does the double‑sided chipbreaker affect performance?
The double‑sided chipbreaker on this square insert promotes short, controllable chips and enhances machining stability, which supports safer, more efficient production cycles.

What dimensions ensure holder compatibility for this insert?
Compatibility requires a holder matching the SNMG format, the 12 mm size, 4.76 mm thickness and a 0° clearance angle, along with correct clamp and shim arrangements.

Is the coating suitable for elevated cutting temperatures?
The CVD‑coating on the T9215 grade provides high surface hardness and good thermal resistance, supporting performance at elevated cutting temperatures during steel turning.

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.