TPMT 16T312 T515 Wendeplatten - Tungaloy

The combination of CVD-coated carbide grade T515, a robust CM chipbreaker and ISO compatibility ensures economical, repeatable results when turning cast iron; the triangular form with a 60° cutting geometry gives high edge security and multiple cutting edges for longer tool life. Order directly via Metav Werkzeuge or consult the team for matching holders and spare screws.

TPMT 16T312 T515 ISO turning insert for cast iron by Tungaloy

TPMT16T312-CM T515 — an ISO-format turning insert designed for efficient external and internal turning of cast iron, offering a CVD-coated carbide grade and an optimised chipbreaker for stable material removal.

• CVD-coated carbide grade T515
• Optimised CM chipbreaker
• Triangular 60° geometry
• Suitable for cast iron turning

Economical machining with a wear-resistant coating

The T515 grade is a CVD-coated carbide developed for economical, high-yield machining of cast iron. The coating increases surface hardness and thermal resistance, which reduces flank wear and extends edge life under interrupted cuts. As a result, the insert enables longer cutting times between changes and contributes to lower per-part tooling costs. The combination of substrate and coating supports stable chip formation, meaning fewer built-up edge issues and a more consistent surface finish when turning.

ISO compatibility and secure clamping for quick changeovers

Produced to ISO standards, this indexable plate matches common holder geometries via its form, 11° relief, tolerance class, fastening method and thickness. The cylindrical hole with a single-sided countersink (40°–60°) ensures reliable seat and clamping in compatible carriers; correct engagement prevents movement under cutting forces and supports process stability. Clear, standardised dimensions simplify tool inventory and reduce setup time, allowing a rapid switch between tools and minimising machine downtime in production environments.

Robust geometry for repeatable results and easy handling

The triangular insert with a 1.2 mm corner radius provides a strong cutting edge and up to three indexable edges, improving cost-efficiency. The 3.97 mm plate thickness and 60° main cutting angle enhance edge strength for heavier cuts or unstable setups, while the CM chipbreaker guides chip flow for medium to heavy depths of cut. Together these attributes deliver repeatable component quality and predictable tool life, which supports process planning and reduces scrap. Where material mix or cutting conditions change, the clear specification makes it straightforward to select compatible holders and replacement plates.

For reliable, economical cast iron turning with Tungaloy’s T515 inserts, contact Metav Werkzeuge for stock verification and holder matching at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Manufacturer article number: 6747836
• SKU: 6747836-Tungaloy
• Model series: ISO turning inserts

Core specifications

• Insert designation: TPMT16T312-CM
• ISO code: 16T312
• Corner radius: 1.2 mm
• Relief angle: 11°
• Plate thickness: 3.97 mm
• Size: 16
• Main cutting angle: 60°

Materials and features

• Material: carbide (Hartmetall)
• Grade/coating: T515 (CVD-coated)
• Chipbreaker: CM
• Insert form: triangular
• Hole: with hole
• Hole style: cylindrical hole + single-sided countersink (40°–60°)
• Application: turning
• Compatibility: ISO standard insert

FAQ

What materials is this insert best suited for?
The TPMT16T312-CM T515 insert is engineered primarily for cast iron applications; the T515 CVD coating and substrate are optimised for economic finishing and roughing of grey and nodular cast irons.

How many cutting edges are available per insert?
The triangular geometry provides up to three indexable cutting edges on the TPMT16T312-CM T515, allowing multiple repositions before replacement.

What does the CM chipbreaker do?
The CM chipbreaker on this indexable insert controls chip formation for medium to heavy cuts, improving evacuation and reducing the risk of long, entangling chips during turning.

Is the insert compatible with standard ISO holders?
Yes, the plate is an ISO-format insert (ISO code 16T312) and is compatible with holders that match the form, 11° relief, size and fastening specifications.

What does the hole style mean for clamping?
The cylindrical hole with a single-sided countersink (40°–60°) ensures a secure seating and consistent clamp force in suitable carriers, increasing repeatability and process stability for the TPMT16T312-CM T515.

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.