SCMT 09T304 AH6235 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated AH6235 grade for improved resistance to chipping, a compact 0.4 mm corner radius for versatile finishing, and ISO-standard compatibility to maintain process reliability; order the insert directly through Metav Werkzeuge or consult the team for application guidance.

SCMT 09T304 AH6235 Tungaloy indexable insert for turning, square 09 form

The SCMT 09T304 AH6235 is an ISO-standard, square indexable insert designed for external and internal turning, optimised for machining stainless steels and interrupted cuts.

• PVD-coated carbide grade AH6235
• Designed for stainless steel and interrupted cuts
• Square 09 form with 0.4 mm corner radius
• Cylindrical hole with single-sided countersink 40°–60°

Consistent cutting performance where chipping risk is high

The combination of PVD-coated surface treatment and the AH6235 carbide formulation delivers a tougher cutting edge that resists premature wear during interrupted cuts and when machining stainless steel. The coating reduces built-up edge and increases thermal resistance, which stabilises tool life under variable load. For shops seeking predictable cycle times and fewer index changes, this specification supports longer productive runs while maintaining surface finish quality.

Secure mounting and ISO compatibility for easy tool management

Built to the ISO geometry, the insert fits standard external holders and boring bars by form, clearance angle and thickness, simplifying inventory and reducing set‑up time. The cylindrical hole with a single-sided countersink (40°–60°) ensures reliable clamping and repeatable seating; the 7° relief and the 90° included angle contribute to predictable cutting forces and chip flow. Clear, standardised interfaces enable straightforward replacement and reduce the risk of incorrect mounting.

Application focus: interrupted cuts, reduced rework and efficient throughput

The one-sided chipbreaker geometry is tailored to evacuate chips efficiently in stop‑start cutting conditions, lowering the chance of edge fracture in unstable cuts. The 0.4 mm corner radius balances edge strength with the ability to produce good edge integrity and acceptable surface finish in a single pass. Practical advantages include fewer tool changes, less rework after breakouts, and steady component quality—particularly important in batch production or mixed-lot environments. For material varieties and process stability, pair this insert with a matching clamping set and holder rated for the intended feeds and speeds.

Contact Metav Werkzeuge for application recommendations and to request the Tungaloy SCMT09T304 AH6235 insert (SKU TUN6890186) for robust stainless steel turning

Technical Data

• Article number: 6890186
• Manufacturer SKU: TUN6890186
• SKU: 6890186-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• ISO designation: 09T304

Facts

• Shape: square (09)
• Corner radius: 0.4 mm
• Thickness: 3.97 mm
• Relief angle: 7°
• Included angle: 90°

Special features

• PVD-coated carbide, grade AH6235
• Material: carbide
• One-sided chipbreaker
• Cylindrical hole with single-sided countersink (40°–60°)
• Designed for turning and interrupted cuts

FAQ

What materials is this insert suitable for?
The SCMT 09T304 AH6235 insert is formulated for stainless steel machining and performs well in interrupted cuts where chipping risk is increased.

How does the AH6235 grade improve performance?
The AH6235 grade combines a tougher substrate with a PVD finish to resist edge chipping and thermal wear, extending usable life in variable cutting conditions.

Which holders are compatible with this ISO geometry?
ISO-compatible external holders and boring bars that accept a square 09 insert with a 7° relief and a 3.97 mm thickness will accommodate this insert reliably.

What is the purpose of the single-sided countersink on the hole?
The cylindrical hole with a single-sided countersink (40°–60°) facilitates secure seating and repeatable clamping, reducing the risk of rotation and misalignment during cutting.

Can this insert be used for internal boring as well as external turning?
Yes; the ISO geometry and square form make the insert suitable for both external and internal turning when paired with the appropriate holder and clamping components.

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.