TCMT 16T312 T6215 Wendeplatten - Tungaloy

Combining a CVD-coated carbide grade and a robust 1.2 mm corner radius, this indexable insert ensures stable performance in stainless steel turning and reliable chip control under steady to lightly interrupted cuts; order the TCMT 16T312 via Metav Werkzeuge or contact our consultants for matching advice.

TCMT 16T312 T6215 indexable insert for turning — Tungaloy

TCMT 16T312 T6215 is an ISO-format triangular indexable insert engineered for external and internal turning of stainless steel under stable to lightly interrupted machining conditions

• CVD-coated carbide grade T6215
• Designed for stainless steel turning
• 1.2 mm corner radius for robust cuts
• ISO triangular insert 16T312 with 7° clearance

Durable coating and cutting performance for consistent productivity

The CVD-coated T6215 grade delivers a balanced combination of wear resistance and edge stability, optimised for turning stainless steel where heat and adhesion can challenge tool life. The deposit-type coating reduces flank wear and helps maintain a consistent cutting edge over longer cycles, which in turn lowers the frequency of tool changes and supports uninterrupted production. Alongside the one-sided chipbreaker, the geometry promotes controlled chip formation for predictable behaviour during both finishing and medium stock removal, improving process reliability and part quality.

ISO compatibility and straightforward toolset integration

Produced to ISO standards as 16T312, the insert fits common triangular holders when matched by shape, clearance and thickness; compatibility depends on form, rake/clearance angles, tolerance class, fastening and plate thickness. The plate is triangular with a 1.2 mm corner radius, a 3.97 mm plate thickness and a 7° clearance angle, and it is supplied with hole featuring a cylindrical bore and a single-sided countersink (40°–60°), enabling secure clamping in conventional assemblies. For system setup, pair the insert with a suitable external holder or boring bar, appropriate backing shim and correct clamp screw torque to achieve repeatable positioning and secure fixation.

Operational advantages and selection guidance for turning tasks

A corner radius of 1.2 mm increases edge strength and supports heavier feed rates without sacrificing surface integrity, while the triangular format provides three cutting edges per index, enhancing cost efficiency. Select the one-sided chipbreaker and T6215 grade to match workpiece stability and cutting conditions; this yields improved surface finish and longer in-process tool life in stainless applications. For interrupted cuts or unstable set-ups, consider a smaller radius or a more ductile grade, but for steady production runs the present combination favours fewer interruptions and consistent results.

Contact Metav Werkzeuge for tailored application advice and to arrange supply of the TCMT 16T312 insert from Tungaloy; our specialists assist with holder selection and process matching

Technical data

• Article number: 6903127
• Manufacturer SKU: TUN6903127
• Label: TCMT16T312 T6215 Tungaloy indexable insert
• Material: carbide
• Coating / grade: T6215 (CVD-coated)
• Model series: ISO turning indexable inserts

Facts

• Insert size: 16
• Plate thickness: 3.97 mm
• Corner radius: 1.2 mm
• Clearance angle: 7°
• Included hole: cylindrical hole with one-sided countersink (40°–60°)
• Included angle: 60°

Special features

• Triangular ISO-format insert (TCMT / 16T312)
• One-sided chipbreaker
• Suited for external and internal turning
• Intended for stainless steel machining under stable to lightly interrupted conditions
• System components: matching external holder or boring bar, backing shim/clamp set and screws for assembly

FAQ

Is the insert suitable for stainless steel turning?
Yes. The TCMT 16T312 in T6215 is formulated for stainless steel turning and offers wear-resistant performance under stable to slightly interrupted cuts.

How is the insert secured in the holder?
The insert is supplied with hole (cylindrical bore and single-sided countersink) and is clamped in ISO-compatible triangular holders using the appropriate shim and clamping screw as specified by the holder manufacturer.

What edge radius is available and what does it mean for machining?
This insert has a 1.2 mm corner radius, providing increased edge strength for robust cutting and improved surface finish when machine stability allows higher feed rates.

Can the TCMT 16T312 be used for internal boring?
Yes. The geometry suits both external and internal turning operations; ensure correct holder selection and stable setup for optimal performance.

Which chipbreaker should be selected for varying conditions?
The supplied one-sided chipbreaker works well for controlled chip formation in many stainless applications; for heavy interruption or unstable setups, a different chipbreaker geometry and/or a more ductile grade may be preferable.

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.