SNMG 120412 T5115 Wendeplatten - Tungaloy

Take advantage of the combination of CVD‑coated carbide grade T5115, stable chip control and a square, 90° geometry for reliable turning of cast‑iron parts; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

SNMG 120412 T5115 SNMG — Indexable Turning Insert for Turning by Tungaloy

SNMG120412 T5115 is a square, ISO‑format indexable insert designed for external and internal turning operations in cast iron and similar materials.

• ISO‑standard SNMG profile, 90° cutting angle
• CVD‑coated carbide grade T5115 for cast iron
• Square, 12 mm size with 1.2 mm corner radius
• Double‑sided insert with cylindrical hole

High wear resistance and balanced edge stability for cast‑iron turning

The CVD‑coated T5115 grade combines wear resistance with edge robustness to deliver consistent tool life when machining cast iron. The coating reduces flank wear and extends the interval between indexings, which leads to fewer tool changes and improved process efficiency. For shops aiming to keep cycle times predictable, the combination of carbide substrate and a proven coating provides a clear advantage in repeatability and surface integrity.

Designed for reliable fitment and secure clamping

Compliance with ISO dimensions ensures that the insert fits a wide range of standard holders; compatibility is governed by form, clearance angle 0°, tolerance class, clamping method, size and thickness. The cylindrical hole and standard geometry permit secure fastening in most external holders and boring bars, supporting stable cutting conditions and minimising vibration. This predictable interface reduces setup time and helps maintain machining accuracy across batches.

Geometry that supports predictable chip control and robust performance

The square 12 mm format with a 1.2 mm corner radius and 4.76 mm thickness gives a balance between strength and versatility. The double‑sided chipbreaker enables economical edge usage and improves chip control, especially in interrupted cuts typical of cast‑iron components. The right selection of chipbreaker and grade yields consistent cutting forces and reduces the risk of premature edge chipping, contributing to a stable production flow.

Practical application guidance to maximise productivity

Intended for both external and internal turning, the insert performs best when matched to the workpiece stability and cutting parameters; choosing the appropriate chipbreaker and feed rates improves surface finish and tool life. Where high material removal is required, the sturdy geometry and T5115 grade support robust feeds and moderate depths of cut. For finishing, lower feeds with the same insert maintain edge integrity and produce the desired surface quality while keeping tooling costs in check.

For machining cast iron with confidence, rely on Tungaloy’s T5115 inserts—contact Metav Werkzeuge for tailored recommendations or to discuss holder compatibility at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6850259
• SKU: 6850259-Tungaloy
• Manufacturer SKU: TUN6850259
• Product designation: SNMG120412 T5115 Tungaloy indexable insert

Core specifications

• Insert designation: SNMG120412
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Cutting angle: 90°
• Clearance angle: 0°

Features & materials

• Material: carbide (cemented carbide)
• Coating: CVD‑coated (T5115)
• Shape: square
• Hole: with cylindrical hole
• Chipbreaker: double‑sided
• Application: turning (external and internal)
• Model series: ISO turning indexable inserts
• Compatibility: determined by form, clearance angle, tolerance class, clamping, size and thickness

FAQ

What materials is this insert optimised for?
The SNMG120412 T5115 insert is optimised for machining cast iron, using the CVD‑coated T5115 grade to balance wear resistance and edge stability.

Can the insert be used for both external and internal turning?
Yes. The SNMG120412 geometry and the standard hole allow use in appropriate external holders and boring bars for both external and internal turning operations.

How many usable cutting edges does the insert offer?
With a double‑sided chipbreaker and square form, the insert provides multiple indexable edges before replacement is required, supporting economical edge usage.

What does the T5115 grade indicate in practical terms?
The T5115 designation denotes a CVD‑coated carbide grade developed for broad cast‑iron applications, offering a compromise between wear resistance and edge strength for reliable performance.

Is holder compatibility guaranteed for all ISO SNMG holders?
Compatibility follows ISO form factors, but correct fit depends on clearance angle, tolerance class, clamping and the holder design; selecting a matching holder ensures secure clamping and optimal cutting conditions.

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.