CNMG 120404 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of a tough CVD-coated carbide grade, precise 80° rhombic geometry and a small nose radius for consistent results in unstable turning operations; order via Metav Werkzeuge or consult our specialists for selection and holder compatibility.

CNMG 120404 T9235 indexable turning insert — rhombic 80°, CVD-coated carbide by Tungaloy

CNMG120404 T9235 is an ISO-format indexable insert engineered for turning applications, offering a balanced solution for external and internal turning where interrupted cuts and unstable conditions demand a tough grade and reliable chip control.

• CVD-coated carbide grade T9235 for steel
• 80° rhombic shape for stable cutting
• 0.4 mm nose radius for fine surface finish
• Double-sided chipbreaker, cylindrical hole design

Durable grade for demanding steel turning

The insert uses the T9235 CVD-coated carbide grade, formulated to deliver elevated toughness for steel machining at reduced cutting speeds. This composition reduces fracturing under interrupted cutting and absorbs impacts from unstable set-ups, which results in more predictable wear behaviour and extended edge life. The practical effect is fewer unplanned tool changes and improved process stability when machining medium to heavy interrupted turning cycles.

Geometry tuned for accuracy and surface quality

The 80° rhombic geometry combined with a 0.4 mm nose radius provides a controlled contact area that supports both form turning and light finishing passes. A smaller nose radius improves dimensional accuracy and surface finish on critical diameters, while the 80° approach angle enhances radial support for the cutting edge. Compatibility with holders depends on form, clearance angle, tolerance class, fastening, size and thickness, so confirm mounting specifics when integrating the CNMG120404 T9235 into existing tool systems.

Designed for efficient indexing and chip control

Featuring a double-sided chipbreaker and a cylindrical hole, the insert accepts two cutting edges per index and locates securely in standard ISO clamping systems. The 4.76 mm plate thickness and 12 mm inscribed size give robust body support, reducing the propensity for vibration in less rigid set-ups. A chipbreaker with two usable faces aids repeatable chip formation and evacuation, lowering cycle interruptions and helping maintain consistent cycle times.

Practical application guidance and tooling system notes

Intended primarily for external and internal turning, the insert performs best when paired with a matching holder or boring bar selected for the intended cut depth and stability. Select the chipbreaker and grade according to the workpiece material and the nature of the cut: the T9235 grade excels on steel in lower-speed, high-impact scenarios. Ensure the chosen holder matches the insert’s form, 0° clearance angle specification, tolerance requirements and fastening method to achieve reliable seating and repeatable geometry.

For robust, cost-effective turning with Tungaloy’s CVD-coated T9235 grade, contact Metav Werkzeuge for ordering and technical advice: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6785913
• Manufacturer SKU: TUN6785913
• Stock SKU: 6785913-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide

Numbers / Core technical data

• Inscribed size: 12 mm
• Plate thickness: 4.76 mm
• Approach angle: 80°
• Nose radius: 0.4 mm
• Clearance angle: 0°

Designs / Special features

• Grade/coating: T9235, CVD-coated carbide
• Plate shape: rhombic
• Hole: with cylindrical hole
• Chipbreaker: double-sided
• Application: turning (external and internal)

FAQ

What workpiece materials is this insert suited to?
The T9235 grade is tailored for machining steel; the insert provides enhanced toughness and chip control for interrupted cuts and unstable turning conditions.

Can this insert be used for finishing passes?
Yes, the small 0.4 mm nose radius and rhombic geometry support fine finishing and accurate diameter control when set up with appropriate feeds and holders.

How is the insert mounted and indexed?
The insert features a cylindrical locating hole and is secured in ISO-format holders; the double-sided chipbreaker allows two usable cutting edges before regrinding or disposal.

Is this insert compatible with standard CNMG holders?
Compatibility depends on holder form, fastening, tolerance class, size and plate thickness; confirm that the holder matches the ISO designation and the insert’s 4.76 mm thickness before assembly.

What are the main benefits of the CVD coating on this grade?
The CVD-coated surface enhances wear resistance while the core carbide maintains toughness, improving tool life under lower cutting speeds and during interrupted cutting.

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.