SNMG 120420 T5125 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide grade T5125, a 2 mm corner radius and ISO compatibility for stable, productive turning operations. Order the SNMG120420 T5125 indexable insert directly via Metav Werkzeuge or contact our consultants for application advice.

SNMG120420 T5125 — ISO indexable insert for turning (Tungaloy)

The SNMG120420 T5125 is an ISO-standard square turning insert designed for interrupted cuts and less stable turning conditions, featuring a CVD-coated carbide grade optimised for cast iron machining.

• CVD-coated carbide T5125 for tough conditions
• ISO SNMG120420 form with 90° corner
• 2 mm corner radius for strength and versatility
• Double-sided chipbreaker with cylindrical hole

Improve process reliability with a tough, coated grade

The SNMG120420 insert combines a CVD-coated carbide substrate with a tougher grade designation T5125, which is especially suitable for the intermittent cutting and variable stability commonly encountered when machining cast iron. The CVD coating increases abrasive wear resistance while the underlying carbide provides the toughness required to resist chipping in interrupted cuts. For production environments where insert life and consistent cycle times matter, this combination translates into fewer index changes and a more predictable machining process.

Geometry that balances strength and accessibility

Featuring a 90° cutting angle and a 2 mm corner radius, this square insert gives a robust cutting edge that tolerates moderate cutting forces without compromising access to component features. The 4.76 mm thickness and square 12 mm form deliver a stable seating in compatible toolholders, while the cylindrical hole enables secure clamping and straightforward replacement. These geometric choices support both general facing and external turning tasks where edge strength is prioritised over very fine finishing.

Chip control and system compatibility for efficient turning

Equipped with a double-sided chipbreaker, the insert supports repeatable chip formation across both working faces, aiding evacuation and surface consistency in batch production. Compatibility with standard ISO turning holders is determined by the insert’s form, relief angle (0°), tolerance class, clamping arrangement, size and thickness, so the insert integrates easily into existing tool systems. Selecting the appropriate chipbreaker and grade combination helps to reduce cycle interruptions and contributes to a smoother production flow.

Practical advantages for workshop and production settings

Because the grade is tailored for less stable conditions, the insert is a practical choice for shops that encounter variability in setup stiffness or material quality. The adverse effects of interrupted cuts are mitigated by the tough T5125 grade and the robust edge geometry, which together reduce the likelihood of premature tool failure. This results in improved uptime, lower tooling consumption per part and enhanced process predictability—factors that matter for both small job shops and larger manufacturing lines.

For technical recommendations or availability of Tungaloy SNMG120420 T5125 inserts, contact Metav Werkzeuge for tailored advice and stock information via info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6852997
• Manufacturer SKU: TUN6852997
• Model series: ISO-Drehwendeschneidplatten
• Material: Carbide
• Grade/coating: T5125 (CVD-coated)
• Application: Turning
• Manufacturer: Tungaloy

Core dimensions

• ISO designation: SNMG120420
• Size: 12 mm
• Thickness: 4.76 mm
• Corner angle: 90°
• Corner radius: 2 mm
• Relief angle: 0°
• Hole: with cylindrical hole
• Edge preparation: double-sided chipbreaker

Design and features

• Square insert form
• Double-sided chipbreaker for repeatable chip control
• CVD coating for abrasive resistance
• Tough grade for interrupted cuts and less stable conditions
• Compatible with ISO-standard external holders, clamping sets and screws

FAQ

What materials is this insert suitable for?
The SNMG120420 T5125 is formulated as a tougher grade for machining cast iron, particularly where interrupted cuts or variable clamping conditions occur.

Can this insert be used in standard ISO holders?
Compatibility depends on the holder’s form, relief angle, tolerance class, clamping method, size and thickness; the SNMG120420 is an ISO-standard form intended to match ISO toolholders meeting those parameters.

What are the key geometric specifications to note?
This square insert features a 90° corner angle, 2 mm corner radius and 4.76 mm thickness, with a cylindrical hole and a double-sided chipbreaker.

Does the insert provide reliable chip control?
Yes, the double-sided chipbreaker is designed to produce consistent chip formation across both working edges, aiding evacuation and surface quality in turning operations.

Is this insert suitable for interrupted cuts?
The T5125 CVD-coated carbide grade is specifically recommended for interrupted cutting and less stable conditions, offering improved resistance to chipping and wear.

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.