SNMG 190616 T5125 Wendeplatten - Tungaloy

High-performance CVD-coated carbide in grade T5125 combines reliable chip control with robust wear resistance, especially for interrupted turning in cast iron; the square, double-sided ISO geometry with a 1.6 mm corner radius gives stable cutting behaviour and simple indexability. Order the insert directly via Metav Werkzeuge or consult the technical team for holder compatibility and application advice.

SNMG190616 T5125 – indexable turning insert by Tungaloy

The SNMG190616 T5125 indexable insert is a CVD-coated carbide cutting geometry designed for turning operations, optimised for interrupted cuts and less stable machining conditions in cast iron.

• CVD-coated carbide grade T5125
• Optimised for interrupted cuts in cast iron
• Double-sided chipbreaker for versatility
• Square 19 mm insert with 1.6 mm radius
• ISO SNMG190616 format with cylindric hole

Proven cutting performance for interrupted turning

The CVD-coated carbide substrate in grade T5125 delivers a balance between toughness and wear resistance that is particularly effective in interrupted cuts. This composition reduces the risk of chipping under varying engagement conditions and extends effective edge life, which supports consistent cycle times and reduced tool-change frequency. The result is a measurable improvement in process stability when machining cast iron components.

Geometry and compatibility that simplify tooling choices

The insert follows the ISO SNMG190616 geometry with a 90° included angle and a 0° clearance angle, available as a square 19 mm format with 6.35 mm thickness and a cylindrical hole for secure fastening. Compatibility with a holder is determined by form, relief angle, tolerance class, fastening method, size and thickness. This standardised interface allows straightforward selection of matched external or internal turning holders and reduces setup complexity.

Consistent chip control and surface finish

A double-sided chipbreaker integrated in the insert design promotes repeatable chip formation and evacuation during both roughing and finishing passes. In combination with the T5125 coating, the insert helps avoid unstable chip shapes and built-up edge on grey cast iron, improving surface integrity and lowering the need for rework. Where surface quality is critical, pair the insert with a holder that supplies sufficient rigidity to exploit the insert’s chip-control geometry.

System mindset: installation and spare parts

The indexable system comprises the insert, a compatible external holder or boring bar, an underlay or clamp set and replacement screws. Correct torque and seating on the shim or clamping set are essential to preserve tolerance and repeatability; properly mounted inserts maintain cutting geometry and help prevent premature edge failure. The standardised hole and form permit rapid replacement and rotation of the cutting edge, contributing to reduced downtime.

Economic efficiency and predictable tool life

The combination of a robust carbide substrate and CVD coating yields a reliable cutting edge that withstands the impact loads common in interrupted turning. This translates into lower tooling consumption per manufactured part and fewer unexpected stops for tool changes, supporting a more predictable production flow. For small-batch or flexible manufacturing, the insert’s double-sided configuration doubles available cutting edges and improves cost efficiency.

Application guidance and selection criteria

Best suited for external and internal turning of cast iron where interruptions or reduced fixture stability are anticipated, the insert performs well when paired with a matched chipbreaker and stable clamping. Selection should consider the workpiece material, depth of cut and machine rigidity; choosing the appropriate holder and clamp completes the system and unlocks the insert’s potential for reliable machining results.

For application-specific advice on the Tungaloy T5125 carbide grade or to confirm compatibility with a particular holder, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt, expert guidance.

Technical data

• Article number: 6853003
• Manufacturer SKU: TUN6853003
• SKU: 6853003-Tungaloy

Numbers / Core technical data

• Insert designation: SNMG190616
• Size: 19 mm
• Thickness: 6.35 mm
• Corner radius: 1.6 mm
• Included angle: 90°
• Clearance angle: 0°
• Hole: cylindric hole
• Shape: square

Special features / Versions

• Material: carbide
• Coating: CVD-coated
• Grade: T5125
• Chipbreaker: double-sided
• Application: turning (external & internal)
• Suitability: interrupted cuts, cast iron
• System components: insert, holder, shim/clamp set, replacement screws

FAQ

What materials is this insert intended for?
This indexable turning insert is primarily intended for cast iron machining and is optimised for interrupted cuts and less stable turning conditions using the T5125 grade.

What does the T5125 designation indicate?
T5125 denotes a CVD-coated carbide grade designed for enhanced toughness and reliable performance in interrupted cutting situations; the coating supports wear resistance while the substrate absorbs impact loads.

Is the SNMG190616 insert reversible or single-use per edge?
The SNMG190616 format is double-sided with two usable cutting edges per face, allowing multiple indexing operations before disposal of the insert.

Which holders are compatible with this insert geometry?
Compatibility follows the ISO SNMG190616 standard; suitability is defined by form, relief/freedom angle, tolerance class, fastening method, size and thickness of the holder and clamping system.

What are the key dimensions and mounting details?
Key dimensions are: 19 mm size, 6.35 mm thickness, 1.6 mm corner radius, 90° included angle and a cylindric hole for fastening (SKU 6853003-Tungaloy).

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.