CNMG 120412 T9225 Wendeplatten - Tungaloy

Benefit from the combination of a CVD-coated carbide grade and a 1.2 mm corner radius for reliable medium-to-heavy steel turning and stable chip control; compatibility with ISO CNMG holders ensures predictable clamping and reduced downtime. Order directly via Metav Werkzeuge or ask the consultants for application advice.

CNMG 120412 T9225 Turning insert, CVD-coated carbide – Tungaloy

The CNMG 120412 T9225 is an ISO-standard indexable insert for external and internal turning, engineered as a robust universal grade for medium-to-heavy steel machining.

• CVD-coated carbide grade T9225
• Robust universal grade for medium–heavy steel
• 1.2 mm corner radius for stable cuts
• Double-sided chipbreaker, cylindrical hole
• ISO CNMG form with 0° clearance angle

Predictable wear life through balanced coating and substrate

The CVD-coated surface combined with a tough carbide substrate provides a balance between thermal wear resistance and edge toughness. The T9225 grade is formulated for varying engagement conditions and light interruptions, which leads to more consistent performance when machining steel under changing cutting parameters. A CVD coating increases resistance to high temperatures at the cutting edge, which translates into longer periods between indexings and fewer unplanned tool changes — a clear efficiency gain on the shop floor.

Compatibility and secure clamping for consistent results

Supplied as an ISO CNMG rhombic insert with a cylindrical hole, this item is intended to work in conventional CNMG holders and boring bars. Compatibility depends on form, relief angle, tolerance class, fastening, size and thickness; the insert’s 0° clearance angle and 4.76 mm thickness are key parameters for matching clamping systems. The recommended system build comprises the indexable insert, a suitable external holder or boring bar, a shim/clamp set and replacement screws, enabling predictable repeatability and quick reassembly during tool changes.

Shop-floor advantages: chip control and operational stability

The double-sided chipbreaker promotes controlled chip formation across a range of cutting depths, improving surface finish and reducing the risk of built-up edge. The 1.2 mm corner radius increases cutting edge rigidity, aiding stable cutting in medium-to-heavy passes and helping to dampen vibration. These traits result in practical benefits: steadier cycle times, lower scrap risk and overall more economical use of tooling resources.

Practical selection advice and application scope

Select the chipbreaker and grade to match the workpiece material and the machine-tool setup; the grade’s universality suits many steel grades but finer adjustments to feed and speed optimise life and finish. For turning tasks that require a compromise between wear resistance and toughness, the T9225 grade is a reliable choice. For further specification checks or to confirm holder compatibility, Metav Werkzeuge’s technical advisors are available to clarify application details and cutting data.

For reliable medium-to-heavy steel turning with Tungaloy’s T9225 CVD-coated carbide insert, contact Metav Werkzeuge for consultancy and order support: info@metav-werkzeuge.com · +49 2822 7131930

Technical data

• Article number: 6781366
• SKU: 6781366-Tungaloy
• Manufacturer SKU: TUN6781366
• Designation: CNMG120412 T9225 Tungaloy insert
• Model series: ISO indexable turning inserts

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Lead/angle: 80°
• Relief/clearance angle: 0°

Special features

• Material: carbide
• Coating / grade: T9225 (CVD-coated)
• Chipbreaker: double-sided
• Hole style: cylindrical hole
• Shape: rhombic
• Application: turning (external and internal)
• System composition: ISO insert, holder or boring bar, shim/clamp set, spare screws

FAQ

Is this insert compatible with standard CNMG holders?
Compatibility requires matching the insert form, relief angle, tolerance class, fastening method, size and thickness; the CNMG 120412 T9225 is manufactured to ISO CNMG form and is intended for standard CNMG holders.

Which materials is the grade suitable for?
The T9225 grade is a robust universal grade for medium-to-heavy steel machining and performs well under variable engagement and lightly interrupted cuts.

What benefits does the CVD coating deliver?
CVD coating on the T9225 grade improves thermal resistance at the cutting edge and enhances wear performance, which extends effective edge life under high-temperature cutting conditions.

How does the double-sided chipbreaker help in practice?
The double-sided chipbreaker provides consistent chip control across opposing edges, improving surface finish and lowering the chance of chip-related interruptions during turning operations.

What are the key dimensions to check before ordering?
Verify size (12 mm), thickness (4.76 mm), corner radius (1.2 mm), and relief/clearance angle (0°); these determine holder fit and cutting behaviour.

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.