CNMG 120412 T5105 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated T5105 carbide and the ISO-standard CNMG geometry for reliable, high-speed turning of cast iron; order directly via Metav Werkzeuge or consult our technical advisors for application-specific recommendations.

CNMG 120412 T5105 — Tungaloy turning insert for cast iron, CVD-coated

A CNMG120412 T5105 Tungaloy turning insert designed for external and internal turning of cast iron under stable, high‑speed conditions, compatible with standard ISO CNMG holders

• CVD-coated carbide for high-speed machining
• Rhombic CNMG shape with 80° approach angle
• Double-sided chipbreaker for improved chip control
• Cylindrical hole, compatible with ISO clamping systems

High-speed performance optimised for cast iron

The T5105 grade is a CVD-coated carbide developed for wear resistance in demanding, high‑speed machining of cast iron. The coating and substrate interaction reduces flank wear and maintains cutting edge integrity, so tool life is extended under stable cutting conditions. For shops seeking consistent cycle times, this insert offers a predictable performance profile that supports efficient production runs while reducing unplanned tool changes.

Geometry engineered for repeatable accuracy

The rhombic CNMG form with an 80° approach angle and a 1.2 mm nose radius provides a balance between strength and accessible contouring. The 0° relief (rake) angle and standard thickness ensure compatibility with ISO CNMG holders; clamping, tolerance class, size and thickness determine fit and must be checked against the chosen toolholder. This geometry delivers reliable dimensional control and surface finish when combined with the appropriate holder and machine rigidity.

Better chip control and process reliability

A double-sided chipbreaker is integrated to promote consistent chip formation when turning cast iron, improving evacuation and reducing the risk of recutting. Under stable setups the insert supports higher cutting speeds and steady metal removal rates, contributing to improved productivity and lower cycle variation. The practical result is a machining process that can be run with greater confidence in repeatability and component quality.

Practical system considerations and selection advice

The insert functions as part of a system: the indexable plate, an appropriate external holder or boring bar, a shim/clamping set and the correct mounting screw together determine overall performance. Select the chipbreaker style and grade to match workpiece material, operation type and machine stability. If optimising cutting data or holder choice is required, technical consultation is recommended to align tool selection with intended applications and to avoid compromise in productivity.

For tailored recommendations on the Tungaloy T5105 grade and to ensure the correct holder compatibility, contact Metav Werkzeuge for expert advice and immediate availability.

Technical data

• Article number: 6852910
• Manufacturer SKU: TUN6852910
• SKU: 6852910-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Core specifications

• Shape: rhombic CNMG
• Designation: CNMG120412
• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 1.2 mm
• Relief angle: 0°
• Approach angle: 80°
• Hole: cylindrical hole
• Corner configuration: with hole

Materials & features

• Substrate: cemented carbide
• Coating/grade: T5105 (CVD-coated)
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Typical use: high-speed machining of cast iron under stable conditions
• System components referenced: insert, holder, shim/clamping set, mounting screws

FAQ

What materials is this insert suited for?
The Tungaloy CNMG120412 T5105 insert is optimised for machining cast iron, offering wear resistance and reliable chip control under stable, high‑speed conditions.

How does the T5105 grade affect tool life?
The CVD-coated T5105 grade reduces flank wear and maintains cutting-edge integrity, which typically extends tool life compared with uncoated grades in similar conditions.

Is the insert compatible with standard CNMG holders?
Compatibility is determined by form, relief angle, tolerance class, clamping method, size and thickness; the CNMG120412 geometry is ISO standard and fits holders designed for CNMG inserts when specifications match.

Can this insert be used for internal turning?
Yes, the rhombic geometry and double-sided chipbreaker allow the insert to be used for both external and internal turning operations when mounted in a suitable boring bar.

What are the advantages of the double-sided chipbreaker?
A double-sided chipbreaker improves chip formation and evacuation, reducing the risk of recutting and supporting more stable cutting at higher speeds, which enhances productivity.

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.