TPMT 130304 AH6235 Wendeplatten - Tungaloy

A robust, PVD-coated carbide insert with a 0.4 mm corner radius and a PM chipbreaker provides consistent performance in turning stainless steels and interrupted cuts; take advantage of reliable clamping and ISO compatibility and order directly via Metav Werkzeuge or consult our advisors for process-specific recommendations.

TPMT 130304 AH6235 – ISO triangular turning insert with PVD coating (Tungaloy)

A TPMT 130304 AH6235 triangular insert designed for turning applications, optimised for machining stainless steels and for use in interrupted cuts where increased break-out risk occurs.

• ISO 60° triangular form
• PVD-coated carbide grade AH6235
• 0.4 mm corner radius for fine finishes
• Cylindrical hole with 40°–60° countersink for secure clamping

Consistent cutting performance for demanding stainless‑steel jobs

The PVD-coated carbide grade AH6235 combines toughness with wear resistance, offering a balance for operations on stainless steel and other difficult-to-machine alloys. The chipbreaker PM is shaped for controlled chip formation under varying stability conditions, which helps reduce unexpected tool setbacks during interrupted cuts. With a 0.4 mm corner radius, the insert supports improved surface finish and edge strength, lowering the risk of premature chipping while maintaining dimensional control. These characteristics translate into more predictable cycle times and reduced scrap rates in serial production.

Secure clamping and ISO compatibility to simplify tooling decisions

Manufactured to ISO dimensions and a 60° triangular geometry, the insert fits a broad range of standard external holders and boring bars; compatibility is governed by shape, relief angle, tolerance class, attachment method, size and thickness. The 11° relief angle and plate thickness of 3.18 mm contribute to reliable seating and repeatable engagement in the toolholder. The central cylindrical hole with one‑side countersink (40°–60°) ensures secure clamping, minimising micro-movements under load and supporting consistent tool life. Specifying ISO-conforming inserts reduces setup complexity across multiple machine tools and simplifies spare stocking.

Practical guidance for application and process security

For external and internal turning where workpiece stability varies, select the PM chipbreaker and the AH6235 grade when machining stainless steels or when interrupted cuts are anticipated. Start with conservative feeds and ramp up within recommended ranges to evaluate edge behaviour; the tougher grade tolerates shock loads better than harder, more brittle grades. Where surface finish is critical, the 0.4 mm corner radius helps achieve a balance between edge strength and finish quality. For assembly, pair the insert with an appropriate support shim and clamp set, and ensure replacement screws meet the holder specification to preserve clamping integrity.

Contact Metav Werkzeuge for an application review and to request the Tungaloy TPMT130304-PM AH6235 insert or tailored recommendations for turning tasks

Technical data

• Article number: 6890212
• Manufacturer SKU: TUN6890212
• Model series: ISO turning indexable inserts
• Designation: TPMT130304-PM AH6235
• Material: Carbide
• Coating: PVD

Facts

• Corner radius: 0.4 mm
• Geometry angle: 60°
• Relief angle: 11°
• Plate thickness: 3.18 mm
• Plate size: 13 mm

Special features

• Chipbreaker: PM
• Hole: cylindrical hole with one-side countersink (40°–60°)
• Plate shape: triangular
• Grade: AH6235
• Typical application: turning; suitable for interrupted cuts and stainless steels

FAQ

What materials is this insert suitable for? The AH6235 grade with a PM chipbreaker is formulated for stainless steel and other tough alloys; the TPMT 130304 design works well where interrupted cuts or breakout risk are present.

How does the 0.4 mm corner radius affect machining? A 0.4 mm corner radius improves edge strength and supports a finer surface finish while reducing the likelihood of chipping during heavy engagement.

Is the insert compatible with standard toolholders? Yes, the insert follows ISO dimensions and fits standard triangular toolholders and boring bars provided the holder matches the form, relief angle, tolerance and thickness.

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.