SNMG 120408 T9235 Wendeplatten - Tungaloy

Combining a CVD-coated carbide grade (T9235) with a 0.8 mm corner radius and a double-sided chipbreaker delivers reliable material removal and long tool life in unstable turning conditions; order directly via Metav Werkzeuge or request guidance from our technical consultants.

SNMG120408 T9235 indexable turning insert — ISO turning insert for external and internal turning by Tungaloy

The SNMG120408 T9235 is an ISO-compliant, square, indexable insert designed for turning applications, especially steel machining under interrupted or unstable cutting conditions.

• ISO-compliant SNMG120408 geometry
• CVD-coated carbide grade T9235
• 0.8 mm corner radius for robust edge stability
• Double-sided chipbreaker with cylindrical hole

Stable cutting under interrupted and unstable conditions

The combination of a CVD-coated carbide substrate and the T9235 grade is formulated for strong edge integrity during lower cutting speeds and interrupted cuts. The coating improves wear resistance while the substrate maintains toughness, meaning fewer unplanned insert changes and more consistent cycle times. For shops facing variable clamping conditions, the robust 0.8 mm corner radius reduces the risk of edge chipping and helps maintain dimensional accuracy on external and internal turning operations.

Proven ISO geometry for straightforward tool selection

Using an ISO-indexed SNMG120408 geometry simplifies holder selection and CNC programming. The square 12 mm size and standardised hole pattern ensure compatibility with many ISO holders; the insert’s cylindrical-hole design secures repeatable clamping and positioning. This standardisation reduces setup time and the likelihood of incorrect insert choices, improving process reliability across batch and single-part production runs.

Productivity and surface quality benefits from the chipbreaker design

The double-sided chipbreaker is engineered to control chip formation for typical steels, producing predictable chips and helping to protect both the workpiece surface and the toolholder. Controlled chip evacuation reduces the need for manual chip management and contributes to a cleaner work environment. The insert’s geometry supports improved surface finish without requiring high cutting speeds, which is particularly useful when machining variable-stability components.

Practical integration and selection advice for workshop use

The insert forms part of a system: an ISO insert, a matching external holder or boring bar, a shim/clamping set and replacement screws. Selecting the correct chipbreaker and the T9235 carbide grade according to workpiece material and cutting regime will extend insert life and reduce overall machining cost. For steel applications with intermittent cuts or less rigid setups, this specification offers a well-balanced compromise between wear resistance and toughness.

For machining tasks that demand edge stability in interrupted cuts, contact Metav Werkzeuge for matching holder recommendations and order the SNMG120408 T9235 insert through our catalogue or consult our technical team for application-specific advice.

Technical Data

• Article number: 6785944
• Manufacturer SKU: TUN6785944
• SKU: 6785944-Tungaloy
• Designation: SNMG120408 T9235 Tungaloy insert
• Series: ISO-Drehwendeschneidplatten

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Free cutting angle: 0°
• Insert form: square
• Hole: with cylindrical hole
• Angle: 90°
• Double-sided chipbreaker

Special features

• Material: carbide
• Coating: CVD-coated (T9235)
• Application: turning (external and internal)
• Suitable for: steel machining, interrupted cuts, unstable conditions
• System components: ISO insert, compatible holder or boring bar, shim/clamp set, replacement screws

FAQ

What steels are best machined with this insert?
The SNMG120408 T9235 insert is optimised for machining steel under lower cutting speeds and in situations with intermittent cutting or reduced setup rigidity; the T9235 grade balances toughness and wear resistance for these conditions.

Is the insert compatible with standard ISO holders?
Yes, the SNMG120408 follows ISO geometry and the cylindrical-hole fastening ensures compatibility with many standard ISO external holders and boring bars when matched by form, clearance angle and tolerance class.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius increases edge strength compared with finer radii, improving resistance to chipping in interrupted cuts and helping to maintain dimensional stability on turned components.

Can this insert be used for finishing operations?
While the insert provides good surface quality under moderate speeds, the T9235 grade is geared towards robustness in interrupted or unstable cuts; for high-finish requirements, review cutting parameters or consider a finer grade optimised for finishing.

What does double-sided chipbreaker mean for tool life?
A double-sided chipbreaker allows indexing to both cutting edges, effectively doubling the number of available cutting corners and contributing to cost-effectiveness and reduced tool change frequency.

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.