SNMG 120412 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide and a 1.2 mm corner radius to maintain cutting stability in interrupted turning; the result is fewer insert changes and consistent part quality. Order or request application advice via Metav Werkzeuge to ensure the correct holder and chipbreaker match for reliable production.

SNMG 120412 T9235 turning indexable insert by Tungaloy — CVD-coated carbide for steel, 90° square

SNMG 120412 T9235 is an ISO-format indexable insert designed for external and internal turning where interrupted cuts and unstable conditions demand a robust grade.

• CVD-coated carbide grade T9235
• Optimised for steel and interrupted cuts
• ISO SNMG 120412, 90° square form
• Double-sided chipbreaker with cylindrical hole

Consistent cutting performance under interrupted conditions

The CVD coating applied to the carbide substrate of this grade enhances wear resistance and reduces built-up edge during low-speed, interrupted cutting. The T9235 grade is formulated for steel machining and is particularly suited to operations where the cutting conditions are unstable or the cut is broken regularly; this leads to improved tool life and steadier cycle times. Chemical vapour deposition (CVD) creates a hard, adherent layer that helps maintain edge integrity and supports repeatable surface finish, which translates directly into economic advantages through fewer insert changes and reduced scrap rates.

Straightforward integration into ISO tool systems

Compatibility with tool holders is governed by insert form, clearance angle, tolerance class, fastening method, size and thickness. This ISO-format insert fits into standard indexing systems and forms a complete system together with an appropriate external holder or boring bar, a shim or clamp set and spare screws. The standardised interface simplifies tool inventory and reduces setup time, while the insert’s square geometry and cylindrical hole ensure secure mounting and predictable seating. Clear, measurable matching criteria remove ambiguity during tooling selection and support faster machine readiness.

Geometry designed for robustness and surface quality

The corner radius of 1.2 mm provides a balance between edge strength and achievable surface finish: a larger radius increases resistance to chipping and extends tool life, while the double-sided chipbreaker allows two usable cutting edges before indexing. The insert’s 0° clearance angle and 90° form deliver stable contact conditions for a predictable cutting force direction, aiding in dimensional control for both external and internal turning. These geometric choices mean fewer interruptions for replacement, more consistent part tolerances and a cleaner process flow on the shop floor.

Contact Metav Werkzeuge to specify the SNMG 120412 T9235 insert and confirm the optimal holder and chipbreaker for the intended turning application

Technical data

• Manufacturer article number: 6785992
• SKU: 6785992-Tungaloy
• Designation: SNMG120412 T9235 Tungaloy indexable insert
• ISO designation: SNMG120412
• Insert name: SNMG120412 T9235 Tungaloy-Wendeplatte
• Hole style: cylindrical hole

Facts

• Corner radius: 1.2 mm
• Relief (clearance) angle: 0°
• Insert size: 12 mm
• Plate thickness: 4.76 mm
• Form / approach angle: 90°

Special features

• Material: carbide
• Coating: CVD
• Grade: T9235 (tough for steel)
• Chipbreaker: double-sided
• Shape: square
• Application: turning (external and internal)
• System composition: ISO insert, holder or boring bar, shim/clamp set and spare screws

FAQ

What materials is this insert best suited for?
The SNMG120412 T9235 insert is optimised for steel machining; the T9235 carbide grade and CVD coating provide toughness and wear resistance suited to interrupted cuts in steel.

How does the 1.2 mm corner radius affect performance?
A 1.2 mm corner radius increases edge strength and resilience against chipping, which extends the service life of the SNMG120412 T9235 insert and contributes to steadier surface finish results.

Can the insert be used for both internal and external turning?
Yes, the ISO SNMG geometry and the square form make the insert suitable for both external and internal turning when paired with the correct holder or boring bar.

How many cutting edges are available before indexing?
The insert is double-sided with a chipbreaker design, offering two indexable cutting edges per side according to the insert orientation and seating, thereby delivering multiple usable edges before replacement.

How is compatibility with a toolholder determined?
Compatibility is determined by insert form, clearance angle, tolerance class, fastening style, size and thickness; matching these parameters ensures secure seating of the SNMG120412 T9235 insert in the chosen holder.

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.