SNMG 120408 T6215 Wendeplatten - Tungaloy

Take advantage of the combination of durable CVD-coated carbide, precise 0.8 mm corner radius and ISO compatibility for consistent turning of stainless steel; order the insert or request advice from Metav Werkzeuge for the optimal holder and clamping set.

SNMG 120408 T6215 Turning Insert — ISO indexable insert, CVD-coated carbide, Tungaloy

A SNMG 120408 T6215 ISO-format indexable turning insert for external and internal turning, suited to stainless steel under stable to lightly interrupted conditions.

• CVD-coated carbide for high wear resistance
• Double-sided chipbreaker for efficient chip control
• Square insert, 12 mm size with 0.8 mm corner radius

Reliable performance for stainless steel machining

The insert is manufactured from carbide with a CVD-coated carbide surface layer identified by the T6215 grade, delivering improved wear resistance during continuous turning. This composition promotes longer tool life and reduced regrinding frequency, which directly improves process economy. The 0° clearance angle and square geometry ensure predictable contact conditions, so cutting forces remain stable and tool deflection is minimised; the result is consistent part tolerances and fewer in-process rechecks.

Controlled chips and stable cuts for predictable productivity

A double-sided chipbreaker built into the geometry supports reliable chip control across a range of feeds and depths of cut. In practice, this reduces downtime for chip clearing and lowers the risk of surface damage on finished components. The insert’s 0.8 mm corner radius helps to balance edge strength with the need for a fine surface finish; when combined with the correct holder and cutting data, the system produces repeatable results and shorter cycle times, which benefits batch production and small-series work alike.

ISO compatibility and straightforward mounting

Designed to the ISO standardised SNMG120408 format, the insert fits conventional square indexable holders and boring bars when form, free clearance, tolerance class, attachment and thickness match. The centre cylindrical hole and standard spacing make mounting and indexation straightforward; spare screws, clamping pads and compatible holders form the complete system. Specifying ISO-format components simplifies replacement logistics and reduces the risk of assembly errors on the shop floor.

When this insert is the right choice

Choose this grade for turning stainless steel in applications where wear resistance and steady-state cutting dominate — long external runs, finish passes after roughing, and jobs with short, occasional interruptions. The combination of T6215 coating behaviour and square, double-sided layout suits factories aiming for high process stability and predictable tool cycles. For setups requiring different chip forms or interrupted heavy cuts, pairing the insert with an appropriate chipbreaker and a rigid holder is recommended to maintain performance.

For tool selection and holder pairing for Tungaloy’s SNMG 120408 T6215 insert, contact Metav Werkzeuge to discuss the ideal clamping set and cutting data for specific stainless steel applications

Technical data

• Article number: 6875729
• Manufacturer SKU: TUN6875729
• SKU: 6875729-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Dimensions & measurable data

• Insert format: SNMG120408 (ISO 120408)
• Corner radius: 0.8 mm
• Size: 12 mm
• Thickness: 4.76 mm
• Relief/clearance angle: 0°
• Included hole: cylindrical
• Included angle: 90°

Features & materials

• Material: carbide
• Coating / grade: T6215, CVD-coated carbide
• Geometry: square insert, double-sided chipbreaker
• Application: turning (external and internal) of stainless steel under stable to lightly interrupted conditions
• System components: ISO insert, appropriate external holder or boring bar, clamping pad and replacement screws

FAQ

What materials is this insert suited for?
The SNMG 120408 T6215 insert is specified for machining stainless steel; the T6215 CVD-coated carbide provides wear resistance under stable to lightly interrupted turning tasks.

How does the insert mount in a holder?
Mounting uses the ISO SNMG120408 format with a central cylindrical hole; compatibility depends on matching form, free clearance, tolerance class, attachment, size and thickness to the chosen holder or boring bar.

What advantages does the double-sided chipbreaker give?
The double-sided chipbreaker promotes consistent chip control, reduces interruptions for chip clearing and supports stable surface quality during continuous turning cycles.

Can the insert be indexed and reused?
Yes; the square, double-sided design permits multiple indexing positions, extending the life-cycle per insert and improving cost-efficiency when rotated correctly.

Which parameters improve surface finish with this insert?
A correct combination of feed, depth of cut and a rigid ISO-compatible holder, together with the 0.8 mm corner radius and appropriate cutting speed for stainless steel, will enhance surface finish and dimensional repeatability.

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.