CNMG 120412 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of CVD‑coated cemented carbide grade T9225, ISO conformity and a double‑sided chipbreaker for stable, productive turning of steel. Secure supply and expert advice are available through Metav Werkzeuge if further consultation is required.

CNMG 120412 T9225 — Indexable turning insert, CVD‑coated carbide (Tungaloy)

A CNMG120412 T9225 indexable turning insert designed for medium to heavy steel turning in external and internal operations, offering robust chip control and ISO compatibility.

• CVD-coated cemented carbide T9225
• ISO-sized CNMG120412 compatibility
• 80° rhombic shape, 1.2 mm corner radius
• Double-sided chipbreaker with cylindrical hole
• 4.76 mm thickness for stable cutting

Consistent cutting performance for demanding steel turning

The CNMG120412 T9225 insert is engineered for repeatable, reliable machining where interrupted cuts or variable engagement demand toughness rather than extreme hardness. The CVD‑coated surface improves wear resistance while the cemented carbide substrate provides the fracture toughness required for medium to heavy machining of steel. This combination reduces flank wear and extends effective tool life, which translates into fewer indexings and lower tool change frequency. The result is a more predictable production flow and improved process security in series and batch turning operations.

Secure clamping and broad holder compatibility to reduce setup time

ISO standardisation ensures straightforward interchangeability: compatibility is determined by form, clearance angle, tolerance class, fastening style, size and thickness. The insert’s 80° rhombic geometry and 1.2 mm corner radius give a balance between strength and finish, while the cylindrical hole supports positive locating in a wide range of external holders and boring bars. The double‑sided design and 4.76 mm plate thickness contribute to clamping stability, reducing vibration and enabling higher metal removal rates with consistent surface quality. Clear specification of holder and shim geometry avoids guesswork during tool setup.

Practical system advantages and application guidance

This insert is part of an ISO system comprising the indexable insert, a compatible external holder or boring bar, a shim/clamping set and spare fixing screws. The double‑sided chipbreaker offers effective chip control, particularly when paired with appropriate coolant and cutting parameters for steel; select the chipbreaker and grade to match workpiece material and machining stability. For turning tasks where robustness and versatility are priorities—external or internal turning of steel components, roughing passes or semi‑finishing—the grade’s balance of toughness and wear resistance supports extended tool life and process reliability. Where higher surface finish is required, adjust feed and depth of cut rather than changing to a softer grade, preserving overall economy.

For tailored recommendations on toolholders, suitable cutting parameters and supply of Tungaloy inserts, contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone at +49 2822 7131930 — Metav Werkzeuge is ready to advise on the best configuration for specific turning applications.

Technical data

• Article number: 6780827
• Manufacturer SKU: TUN6780827
• Supplier SKU: 6780827-Tungaloy
• Description: CNMG120412 T9225 Tungaloy indexable insert
• Series: ISO turning indexable inserts
• Material: cemented carbide
• Grade/coating: T9225 (CVD‑coated)

Facts

• Inscribed circle / size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Relief / clearance angle: 0°
• Included angle: 80°

Special features

• Double-sided chipbreaker
• Cylindrical locating hole
• Rhombic plate form
• With hole for positive locating
• Suitable for external and internal turning
• Robust universal grade for medium to heavy steel machining
• System components: insert, holder/boring bar, shim/clamping set, spare screws

FAQ

What materials is this insert best suited for?
The CNMG120412 T9225 indexable insert from Tungaloy is a robust universal grade designed primarily for steel machining, especially medium to heavy turning where variable engagement or slight interruptions occur (SKU: 6780827-Tungaloy).

Is this insert compatible with standard CNMG holders?
Yes. The insert follows ISO CNMG dimensions and fits standard CNMG holders when the holder matches form, clearance angle, tolerance class, fastening and thickness; the cylindrical hole supports positive locating.

How does the T9225 grade affect machining performance?
The T9225 grade, with its CVD coating on a cemented carbide substrate, provides a balance of wear resistance and toughness, improving tool life under mixed or interrupted cutting conditions and enhancing process stability.

Can this insert be used for finishing operations?
While optimised for medium to heavy machining and roughing, the insert can produce acceptable finishes when using lower feeds and lighter depths of cut; for finer surface quality consider adjusting parameters or selecting an insert grade tailored for finishing.

What system components are recommended when ordering this insert?
A complete system typically includes the ISO CNMG insert, a matching external holder or boring bar, a shim/clamping set and spare fixing screws to ensure correct clamping and alignment.

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.