CNMG 120412 T9225 Wendeplatten - Tungaloy

Take advantage of the combination of a robust CVD-coated carbide grade, precise ISO geometry and secure clamping for consistent turning productivity; order the insert directly via Metav Werkzeuge or request application advice from our consultants.

CNMG 120412 T9225 (Indexable insert) — CVD-coated carbide, 1.2 mm corner radius — Tungaloy

CNMG 120412 T9225 is a rhombic ISO indexable insert designed for medium to heavy turning operations, offering a universal, tough grade suitable where interrupted cuts or variable engagement demand increased fracture resistance

• ISO rhombic insert CNMG 120412
• CVD-coated carbide grade T9225
• Corner radius 1.2 mm for stable cutting
• Double-sided insert with cylindrical hole

Consistent performance for medium to heavy turning

The CVD-coated T9225 grade is formulated as a robust universal solution for demanding steel turning. Its balance of hardness and toughness extends tool life under variable cutting conditions, so material removal rates can be maintained without frequent index changes. The combination of a wear-resistant coating and a stable carbide substrate reduces flank wear and microchipping, which in turn leads to longer productive cycles and fewer unscheduled tool changes. This creates measurable efficiency gains on batch and single-piece production alike.

Secure fit and predictable compatibility with holders

Compatibility with tool holders is determined by form, relief, tolerance class, fastening method, size and thickness; the ISO geometry simplifies selection and replacement. The rhombic shape and cylindrical hole ensure positive location and secure clamping, while the double-sided design allows economical use of both cutting edges. The insert’s 0° relief and defined corner radius 1.2 mm deliver predictable engagement behaviour, reducing vibration and supporting stable machining when used with appropriately rated external holders and boring bars.

Practical selection and application guidance for reliable results

For practical use select the chipbreaker and grade to match workpiece material and machining stability: the double-sided chipbreaker design supports both roughing and finishing passes depending on cutting parameters. In unstable set-ups or interrupted cuts the toughness of T9225 helps prevent premature edge failure. When choosing feeds and speeds, favour slightly reduced values on marginal clamping or long overhangs to exploit the insert’s wear resistance while limiting thermal shock. Clear compatibility checks and correct torque on the clamping screw will maintain repeatable performance and reduce downtime.

For reliable turning with Tungaloy’s CVD-coated T9225 grade, contact Metav Werkzeuge for tailored application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6781291
• Manufacturer SKU: TUN6781291
• Model series: ISO turning indexable inserts
• Material: Carbide
• Grade: T9225

Facts

• Corner radius: 1.2 mm
• Relief angle: 0°
• Insert thickness: 4.76 mm
• Insert size: 12 mm
• Included hole: with hole (cylindrical)
• Main angle: 80°

Special features

• Rhombic insert shape (CNMG)
• CVD-coated carbide
• Double-sided chipbreaker
• Suitable for medium to heavy steel turning
• Compatibility determined by form, clearance, tolerance, fastening, size and thickness

FAQ

Which materials is this insert suitable for? The Tungaloy CNMG 120412 T9225 insert is intended primarily for medium to heavy steel turning and performs well where increased toughness is needed for interrupted or varying engagement cuts.

Is the insert reversible and how is it fixed? Yes, the insert is double-sided and designed for use with a cylindrical-hole clamping system; secure fixing is achieved via the matching holder, clamping plate and screw.

What are the key dimensions to check for holder compatibility? Check ISO geometry CNMG 120412, corner radius 1.2 mm, insert thickness 4.76 mm, hole style (cylindrical) and the relief angle to ensure precise fit with the chosen external holder.

Can this grade handle interrupted cuts or unstable conditions? The T9225 grade is engineered as a tough universal option; its CVD-coated surface and carbide body provide enhanced resistance to chipping during interrupted cuts and marginal stability.

How should the chipbreaker be selected for a job? Select the chipbreaker variant according to the material, depth of cut and stability; the double-sided chipbreaker on this insert offers flexibility for both higher-feed roughing and controlled finishing passes.

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.