TCMT 16T312 T9225 Wendeplatten - Tungaloy

High productivity and consistent edge life make the TCMT 16T312 T9225 a reliable choice for medium to heavy steel turning; benefit from CVD-coated carbide durability and a sturdy 1.2 mm corner radius for stable chip control. Order inserts directly via Metav Werkzeuge or request application advice from their consultants.

TCMT 16T312 T9225 Turning Insert by Tungaloy — CVD-coated carbide, 60°

The TCMT 16T312 T9225 is an ISO-standard triangular indexable insert for turning, engineered for robust performance in medium to heavy steel machining.

• CVD-coated carbide for reliable edge life
• Triangular 60° form for versatile turning operations
• Single-sided chipbreaker for predictable chip control
• ISO compatibility for standard turning holders

Consistent productivity through robust grade and coating

The T9225 grade, a CVD-coated carbide, is formulated as a universal, high-toughness cutting material for medium to heavy steel turning where interrupted cuts or variable engagement demand extra resilience. The combination of coating and substrate reduces flank wear and supports longer tool life, which translates into fewer tool changes and steadier cycle times. The robust composition ensures stable chip formation under demanding conditions, promoting repeatable part quality and reduced scrap.

Secure fit and predictable cutting geometry for easy integration

The insert follows ISO conventions for form and sizing, presented in a triangular 16 format with a central mounting hole. The triangular profile and 60° included angle allow flexible use in both external and internal turning. Compatibility with an external holder or boring bar is determined by insert shape, relief angle, tolerance class, fastening and thickness; this insert features a 7° relief angle and a plate thickness of 3.97 mm, ensuring reliable seating and repeatable positioning. The central hole is with cylindrical hole plus single-side countersink (40°–60°) for secure clamping and accurate location in standard ISO clamping systems.

Practical machining guidance that improves process reliability

With a 1.2 mm corner radius, this insert balances edge strength and surface finish, making it suitable for applications requiring both durability and acceptable roughness. The single-sided chipbreaker promotes controlled chip flow in turning operations on steel, reducing the risk of long, continuous chips. For best results, match the chipbreaker and grade to the workpiece material and machining stability; select stiffer setups and appropriate feeds for heavier cuts to capitalise on the grade’s toughness. Regular insert inspection for edge chipping and consistent seating torque contributes to predictable performance and overall cost-effectiveness.

Contact Metav Werkzeuge for tailored application advice and to source TCMT 16T312 T9225 inserts from Tungaloy — specialists available at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6781321
• Manufacturer SKU: TUN6781321
• SKU: 6781321-Tungaloy
• Model series: ISO turning indexable inserts
• Name: TCMT16T312 T9225 Tungaloy insert

Facts

• Size: 16 mm
• Plate thickness: 3.97 mm
• Corner radius: 1.2 mm
• Relief angle: 7°
• Included angle: 60°

Special features

• Material: carbide
• Coating: CVD-coated
• Grade: T9225, universal robustness for steel
• Shape: triangular
• Hole: with cylindrical hole + single-side countersink (40°–60°)
• Chipbreaker: single-sided
• Application: turning (external and internal)

FAQ

What materials is this insert intended for?
The TCMT 16T312 T9225 insert is designed primarily for steel machining, offering robustness for medium to heavy turning operations.

How does the T9225 grade affect performance?
The T9225 grade is a CVD-coated carbide that provides enhanced toughness and wear resistance, improving edge life and stability under variable cutting conditions.

Which holders are compatible with this insert?
Compatibility depends on ISO form, relief angle, tolerance class, fastening, size and thickness; the TCMT 16T312 format fits standard ISO triangular turning holders with matching clamping systems.

What is the significance of the 1.2 mm corner radius?
A 1.2 mm corner radius increases edge strength for heavier cutting conditions while maintaining acceptable surface finish, making it suitable for general turning where stability is required.

Is the insert suitable for interrupted cuts?
Yes, the combination of T9225 grade and CVD-coated carbide substrate delivers additional toughness, making it appropriate for light to moderate interrupted cutting conditions.

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.