CNMG 190612 T5125 Wendeplatten - Tungaloy

Benefit from the combination of CVD-coated carbide for improved wear resistance, a design optimised for cast iron with interrupted cuts, and ISO-compliant geometry for reliable clamping. Order the insert directly via Metav Werkzeuge or consult the specialists for application-specific selection.

CNMG 190612 T5125 Turning Insert – CVD-coated carbide by Tungaloy

The CNMG190612 T5125 is a rhombic ISO turning insert designed for external and internal turning, offering robust performance in interrupted cuts and less stable machining conditions.

• CVD-coated carbide for enhanced wear resistance
• Optimised for cast iron and interrupted cuts
• ISO CNMG190612, rhombic 80° form
• Double-sided chipbreaker, cylindrical hole

Consistent performance on cast iron and mixed conditions

The T5125 grade is a CVD-coated carbide developed for tougher machining scenarios, providing a balance between toughness and wear resistance. In practice, this means fewer insert changes and steadier tool life when turning cast iron under interrupted conditions or where machine rigidity is limited. The coating reduces flank wear and the substrate toughness helps resist chipping at interrupted cuts, delivering measurable uptime improvements and stable surface finish without sacrificing productivity.

Secure clamping and ISO interchangeability for predictable results

Built to the ISO CNMG190612 form, the insert features a rhombic 80° geometry and a 1.2 mm corner radius, with a 6.35 mm thickness and a cylindrical centre hole for positive locating. Compatibility with a holder is determined by the insert form, clearance angle (0°), tolerance class, fastening method, size and thickness; adherence to ISO dimensions simplifies toolholder selection and repeatable set-up. The double-sided design also doubles the effective life per insert by allowing rotation, reducing inventory turnover and gage variation between indexed positions.

Practical system setup and chip control for efficient production

Integrating this indexable component into a machining system requires the matching external holder or boring bar, a suitable shim or clamp set and the correct replacement screws. Selecting the appropriate chipbreaker and grade for the workpiece and cutting parameters is essential: the double-sided chipbreaker on this insert improves chip control for many cast iron grades, reducing recutting and aiding coolant access. For production runs, the result is a more predictable process, easier scrap control and clearer cost-per-part calculations.

Discuss machining strategy and supply options with Metav Werkzeuge for the Tungaloy T5125 grade — technical consultancy and fast delivery are available via Metav Werkzeuge.

Technical data

• Article number: 6852950
• Manufacturer SKU: TUN6852950
• Seller SKU: 6852950-Tungaloy
• Model series: ISO turning inserts

Facts

• Insert designation: CNMG190612
• Insert size: 19 mm
• Thickness: 6.35 mm
• Corner radius: 1.2 mm
• Clearance angle: 0°
• Insert form angle: 80°

Special features

• Material: carbide
• Coating / grade: T5125 (CVD-coated)
• Plate form: rhombic
• Chipbreaker: double-sided
• Hole: with hole, cylindrical hole
• Typical application: turning (external and internal)
• System components: matching holder or boring bar, shim/clamp set, replacement screws

FAQ

What workpieces is this insert best suited to? This insert is optimised for machining cast iron and performs well in interrupted cuts; the T5125 coating and substrate offer a robust combination for such conditions.

How does the ISO CNMG190612 form affect holder selection? ISO CNMG190612 specifies the rhombic 80° form and dimensions, enabling straightforward selection of compatible external holders or boring bars that accept CNMG inserts.

Can the insert be rotated to use multiple cutting edges? Yes, the insert is double-sided and indexable, allowing rotation to the next edge to extend tool life and reduce tooling costs.

What does the T5125 designation mean in practice? T5125 denotes a CVD-coated carbide grade tuned for toughness and wear resistance, providing reliable performance on cast iron with intermittent engagement.

Is there guidance on matching chipbreakers to material and machining type? Chipbreaker choice should be aligned with the workpiece and stability of the set-up; the supplied double-sided chipbreaker is a versatile option for many cast iron turning tasks.

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.