TPMT 16T308 T515 Wendeplatten - Tungaloy

Economical CVD-coated carbide grade T515 for efficient cast-iron turning, triangular ISO insert with a 0.8 mm corner radius and 11° clearance, plus secure mounting via a cylindrical hole with a single-sided countersink. Take advantage of proven chip control and stable edge life: order the TPMT16T308-CM T515 directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TPMT 16T308 T515 — Turning insert, triangular ISO insert, 0.8 mm radius | Tungaloy

A TPMT 16T308 T515 ISO-indexable insert designed for economical external and internal turning, optimised for cast-iron applications and ISO-series holders

• CVD-coated carbide grade T515
• Triangular ISO insert, 16 mm inscribed circle
• 0.8 mm corner radius, 11° clearance angle
• Cylindrical hole with single-sided countersink 40°–60°

Efficient, wear-resistant cutting for cast-iron turning

The combination of a CVD-coated surface and carbide substrate in grade T515 offers a balance of wear resistance and toughness that suits continuous and interrupted turning of cast iron. The coating reduces flank and crater wear under typical cutting conditions, extending tool life and maintaining dimensional stability over longer runs. For process planners this means fewer insert changes, more predictable downtimes and improved throughput when machining grey cast iron or similar materials.

Predictable chip control and secure clamping for stable machining

The CM chipbreaker geometry is engineered to produce short, controllable chips when paired with the correct cutting data and machine rigidity. The insert’s triangular form and 0.8 mm corner radius support light to medium depth passes with consistent surface finish. Mounting is made reliable by the cylindrical hole with a single-sided countersink (40°–60°), while the 11° clearance angle reduces rubbing on the flank face. Compatibility with a holder is defined by form, clearance, tolerance class, fastening, size and thickness, so selection of the matching ISO external holder or boring bar is essential for repeatable performance.

System thinking: choose the right set-up for best results

This ISO-series insert works as part of a system: indexable insert, suitable external holder or boring bar, shim/clamp set and replacement screws. Selecting the correct chipbreaker and grade depends on workpiece stability, interrupted cuts and target cutting speed. For typical turning operations the TPMT16T308-CM T515 provides an economical solution that combines stable chip formation and good edge life, reducing process variability and the need for rework. For unfamiliar setups, technical data and holder verification help ensure correct mounting and safe operation.

Secure genuine Tungaloy TPMT16T308-CM T515 inserts and expert guidance from Metav Werkzeuge — contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for specification support and availability

Technical data

• Article number: 6742148
• Manufacturer SKU: TUN6742148
• SKU: 6742148-Tungaloy
• Series: ISO turning indexable inserts
• Product name: TPMT16T308-CM T515

Core measurements

• Inscribed circle / size: 16 mm
• Plate thickness: 3.97 mm
• Corner radius: 0.8 mm
• Clearance angle: 11°
• Included angle: 60°

Design & features

• CVD-coated carbide (grade T515)
• Chipbreaker: CM
• Shape: triangular
• Hole: cylindrical hole + one-sided countersink (40°–60°)
• Suitable for cast iron machining
• System components: ISO insert, holder/boring bar, shim/clamp set, spare screws

FAQ

What materials is this insert best suited to machine?
The TPMT16T308-CM T515 is designed primarily for economical machining of cast iron; the CVD-coated T515 grade provides balanced wear resistance for such applications.

Which chipbreaker does the insert use and what is its purpose?
This insert is equipped with the CM chipbreaker, which promotes short, manageable chips and consistent chip control during turning operations.

How does the insert fix to the holder?
The insert uses a cylindrical hole with a single-sided countersink (40°–60°) to ensure secure clamping when paired with a compatible ISO external holder or boring bar.

What factors determine compatibility with a toolholder?
Compatibility depends on insert form, clearance angle, tolerance class, fastening method, size and thickness; verify these parameters when selecting a holder for the TPMT16T308-CM T515.

Is this insert suitable for interrupted cuts?
Grade T515 and the CM chipbreaker can handle interrupted conditions, but final selection should consider workpiece stability and cutting parameters for optimal life.

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.