TPMX 280716 AH8015 BG Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide in grade AH8015 and a robust 1.6 mm corner radius for steady tool life and dependable performance in drilling operations; the insert’s triangular form and BG chipbreaker support consistent chip control and surface finish. Order these indexable inserts directly via Metav Werkzeuge or ask our consultants for application advice.

TPMX 280716 AH8015 – Indexable insert for drilling by Tungaloy

TPMX280716R-BG AH8015 is a triangular indexable insert designed for drilling applications on heat‑resistant alloys and similar demanding materials.

• PVD-coated carbide AH8015
• Triangular insert, 28 mm size
• Corner radius 1.6 mm
• 11° clearance angle

Improved productivity with balanced wear resistance

The PVD‑coated carbide grade AH8015 delivers a deliberate balance between wear resistance and cutting‑edge stability, making it a pragmatic choice for general machining of heat‑resistant alloys. The coating reduces adhesion and thermal wear at the cutting edge; in practice this means longer intervals between index changes and fewer unplanned tool interventions. For operations where cycle time and predictable tool life matter, this insert supports a stable production flow and helps to reduce overall tooling costs by extending effective service life.

Consistent chip control and secure clamping

The chipbreaker BG geometry on this triangular insert is engineered for controlled chip formation when used in interchangeable‑insert drilling systems. Controlled chips lower the risk of recutting and improve coolant access, which in turn enhances surface quality and component tolerance retention. The insert’s triangular outline and the specified special hole style ensure a positive mechanical seat and stable clamping in the drill body, reducing vibration and promoting repeatable hole geometry across production batches.

Robust geometry for reliable hole quality

A 1.6 mm corner radius combined with an 11° clearance angle and a 60° included angle provides a stiff cutting edge that resists chipping while producing good hole roundness and surface finish. The modest radius increases edge strength for interrupted cuts common in drilling, yet remains small enough to preserve dimensional accuracy. These geometric choices translate into fewer rejects and reduced rework in serial production, especially when machining challenging alloys where edge robustness is critical.

System compatibility and practical application notes

Delivered as part of a drilling system concept, the insert is intended to be paired with a compatible drill body, the appropriate clamp screw and the matching key for assembly. Before selection, match insert geometry and seat type to the drill diameter and the tool body specification to ensure correct fit and secure retention. The insert is primarily aimed at drilling operations; its material and coating combination make it particularly suitable for demanding alloy work where a balance of durability and edge stability is required.

For application support or to secure Tungaloy TPMX inserts for reliable drilling performance, contact Metav Werkzeuge—our specialists at Metav Werkzeuge will advise on the correct insert geometry and system match for specific machining tasks.

Technical data

• Manufacturer article number: 4854213
• SKU: 4854213-Tungaloy
• Manufacturer SKU: TUN4854213
• Model series: Drilling indexable inserts
• Designation: TPMX280716R-BG AH8015

Facts

• Corner radius: 1.6 mm
• Plate size: 28 mm
• Plate thickness: 7.94 mm
• Clearance angle: 11°
• Included angle: 60°
• ISO code: 280716

Special features

• Material: carbide
• Coating: PVD-coated carbide grade AH8015
• Insert form: triangular
• Chipbreaker: BG
• Hole style: special (Sonder)
• Intended application: drilling
• System components: drill body, matching insert, clamp screw, key

FAQ

What materials is this insert suitable for?
The TPMX280716R-BG AH8015 indexable insert from Tungaloy is specified for the general machining of heat‑resistant alloys and similar materials where a balanced combination of wear resistance and edge stability is required; suitability for other materials should be confirmed against machining parameters.

How should the insert be matched to a drill body?
Ensure the drill body accepts a TPMX‑style triangular insert with the ISO code 280716 and the indicated seat geometry; the insert’s special hole style requires a corresponding clamp and seat in the drill body for secure retention.

What are the advantages of the AH8015 grade and PVD coating?
Grade AH8015 with a PVD coating offers reduced adhesion and improved thermal resistance at the cutting edge, resulting in more consistent tool life under elevated temperatures compared with uncoated grades.

Does the corner radius affect hole tolerance?
The 1.6 mm corner radius increases edge strength and reduces chipping risk, which supports repeatable hole quality; for very tight diameter tolerances, consider the effect of radius on corner rounding when specifying final dimensions.

Can this insert be used for interrupted cuts or unstable conditions?
The combination of a modest corner radius, robust carbide substrate and PVD coating provides good edge stability under intermittent cutting typical of drilling; however, system rigidity and correct clamping remain decisive factors for performance.

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.