SNMG 120412 T5105 Wendeplatten - Tungaloy

Take advantage of the combination of high-speed performance, robust edge life and simple integration into ISO tooling for uninterrupted turning operations; order original Tungaloy inserts directly from Metav Werkzeuge or consult our specialists for compatibility and application advice.

SNMG120412 T5105 Turning Insert (ISO 120412) by Tungaloy

A SNMG120412 T5105 indexable turning insert engineered for stable, high-speed external and internal turning of cast iron under controlled conditions

• CVD-coated carbide for high-speed turning
• Optimised for cast iron machining
• Double-sided chipbreaker for consistent chips
• 1.2 mm corner radius for robust edge

Consistent cutting performance from CVD-coated carbide

The insert is manufactured in CVD-coated cemented carbide, a combination that prioritises wear resistance and thermal stability during high-speed operations. This construction reduces flank and crater wear, so tool-change intervals are extended and component tolerances remain consistent. Because the grade T5105 is designed specifically for cast iron, machining can be carried out at higher cutting speeds where chip formation and edge stability are maintained, resulting in improved throughput and predictable process windows.

Geometry and mounting designed for stability and repeatability

A defining characteristic is the double-sided chipbreaker and the 1.2 mm corner radius, which together support stable engagement and controlled chip flow in interrupted and continuous cuts. The insert's dimensions — 12 mm size and 4.76 mm thickness — and the presence of a cylindrical hole ensure secure clamping with ISO-spec holders; compatibility is governed by form, clearance, tolerance class, fixation, size and thickness. The 90° included angle and 0° clearance angle contribute to predictable cutting forces and simplify toolpath planning for turning operations.

Application scenarios and process benefits for workshop productivity

This ISO indexable insert is suited for both external and internal turning, especially where cast iron is the primary workpiece material. In a typical system arrangement — insert, matched outer holder or boring bar, underlay/clamping set and replacement screws — the grade and chipbreaker selection should align with workpiece stability and desired surface finish. The focused design of this insert supports higher metal removal rates and consistent surface quality, which reduces rework and supports cost-efficient production. For shops seeking reliable inserts for series production, the combination of grade T5105 and proven geometry delivers repeatable results and lower overall tooling consumption.

For tailored advice on integrating Tungaloy SNMG120412 T5105 inserts into specific turning applications, or to order original inserts via Metav Werkzeuge, please contact our technical team at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6850260
• Manufacturer SKU: TUN6850260
• Model series: ISO indexable turning inserts
• Grade/coating: T5105 (CVD-coated cemented carbide)
• Manufacturer: Tungaloy

Facts

• Insert designation: SNMG120412
• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Included angle: 90°
• Clearance angle: 0°
• Hole: cylindrical (with hole)

Special features

• Double-sided chipbreaker
• For external and internal turning
• Optimised for cast iron at high speed
• Compatibility via form, clearance, tolerance, fixation, size, thickness
• System: insert, holder, underlay/clamping set, replacement screws

FAQ

What materials is this insert best suited for?
The SNMG120412 T5105 insert is optimised for cast iron machining; the T5105 grade and CVD coating provide wear resistance and thermal stability for high-speed turning of grey and nodular cast irons.

Can the insert be used on both external and internal turning operations?
Yes — the SNMG120412 T5105 indexable insert is designed for external and internal turning and can be mounted in appropriate ISO-compatible holders or boring bars.

How does the chipbreaker affect process stability?
The double-sided chipbreaker on the insert promotes consistent chip control, which reduces the risk of entanglement and improves surface finish in both continuous and interrupted cuts.

What dimensions are relevant for selecting a compatible toolholder?
Key dimensions are the insert size (12 mm), thickness (4.76 mm), corner radius (1.2 mm), and the presence of a cylindrical hole; compatibility also depends on holder form, clearance and tolerance class.

Is this an original Tungaloy product and what is the SKU?
This is an original Tungaloy indexable insert, designation SNMG120412 T5105; the manufacturer article number is 6850260 and the manufacturer SKU is TUN6850260.

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.