SCMT 120404 T9225 Wendeplatten - Tungaloy

The combination of an ISO‑standard insert, its CVD‑coated T9225 grade and the compact 0.4 mm corner radius delivers reliable performance for medium to heavy steel turning; this reduces tool change frequency and supports consistent cycle times. Order the insert directly via Metav Werkzeuge or contact the consultants for application advice.

SCMT 120404 T9225 turning insert by Tungaloy — ISO turning insert, CVD‑coated for medium to heavy steel

SCMT120404 T9225 is an ISO‑form, square turning indexable insert designed for robust external and internal turning operations in industrial machining.

• ISO‑form square insert SCMT120404
• CVD‑coated cemented carbide T9225
• Suited for medium to heavy steel turning
• 7° relief angle, 0.4 mm corner radius

Boosted productivity through stable cutting and long edge life

The insert combines a CVD‑coated substrate with a robust universal grade T9225, engineered for changing engagement conditions and slightly interrupted cuts. The coating enhances wear resistance while the cemented carbide core maintains edge stability, which together support longer tool life and fewer interruptions in production. This leads to measurable improvements in machining uptime and predictable process cycles, an essential benefit for high‑mix or batch production environments.

Simple compatibility and secure clamping for reliable set‑up

Compatibility with holders is determined by the insert’s ISO form, size and thickness, together with the specified 7° relief angle and the tolerance class. The 12 mm square format with a 4.76 mm thickness and a central hole (cylindrical hole plus one‑sided countersink 40°–60°) ensures positive axial location and reliable clamping. This configuration reduces indexing errors and supports fast, repeatable mounting in standard external holders and boring bars, improving setup consistency on the shop floor.

Tailored for steel applications and predictable chip control

Designed as a universal style for the mid to heavy end of steel machining, the grade provides balanced toughness and wear resistance so that interruptions or variable cuts are tolerated without premature chipping. The single‑sided chipbreaker promotes controllable chip formation when paired with appropriate feed and depth settings, reducing the risk of built‑up edge and improving surface finish in continuous turning operations.

Economic handling and process security for production environments

The modest 0.4 mm corner radius enables a blend of edge strength and dimensional control suitable for finishing to medium roughing passes. Using an ISO‑standard insert in the SCMT family simplifies inventory management and reduces the number of special items held in stock. Combined with the insert’s construction, this contributes to lower per‑part tooling costs, predictable tool change intervals and improved process security across varied steel components.

For application guidance, stock availability or tailored recommendations on using the CVD‑coated T9225 inserts from Tungaloy, please contact Metav Werkzeuge—our consultants are available by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 6781169
• Manufacturer SKU: TUN6781169
• Model series: ISO‑Drehwendeschneidplatten

Facts

• ISO designation: 120404
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 7°
• Hole: with hole
• Hole style: cylindrical hole + one‑sided countersink (40°–60°)

Special features

• Material: cemented carbide
• Coating/type: CVD‑coated carbide, grade T9225
• Form: square
• Chipbreaker: single‑sided
• Typical application: external and internal turning

FAQ

What materials is this insert intended for?
The SCMT120404 T9225 turning insert is optimised for medium to heavy steel machining and offers toughness for slightly interrupted cuts thanks to the CVD‑coated T9225 grade.

How is the insert secured in the holder?
Clamping depends on form, relief angle and tolerance; the square 12 mm insert uses a central hole with a cylindrical bore and a one‑sided countersink to ensure secure axial location and repeatable clamping.

Can this insert be used for internal boring?
Yes; the insert’s ISO form and single‑sided chipbreaker make it suitable for both external turning and certain internal turning applications when mounted in a compatible boring bar.

What advantages does the T9225 grade provide?
The T9225 grade combines wear resistance with sufficient toughness to handle variable engagement and light interruptions, supporting longer edge life and consistent results in steel turning.

Which insert dimensions are critical for selecting a compatible holder?
Key dimensions are the ISO code 120404, the 12 mm size, 4.76 mm thickness, 7° relief angle and the 0.4 mm corner radius; these determine fit, clearance and orientation in the intended holder.

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.