SPMT 120404 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated AH6235 grade and ISO compatibility for reliable machining of stainless steels; the robust carbide substrate and defined geometry reduce chipping risk and support stable production. Order original Tungaloy inserts directly via Metav Werkzeuge or contact the consultants for application advice.

SPMT120404 AH6235 indexable turning insert — PVD-coated carbide for turning, by Tungaloy

SPMT120404 AH6235 is an ISO-standard square indexable turning insert engineered for external and internal turning where interrupted cuts and stainless steels pose a higher risk of edge breakout.

• ISO 120404 square insert
• PVD-coated AH6235 grade
• Suited to stainless steels and interrupted cuts
• 0.4 mm corner radius, 11° clearance

Improve cutting reliability and process stability with a tuned grade

The combination of a PVD-coated surface and the AH6235 grade on a robust carbide substrate delivers higher resistance to wear and improved edge integrity under variable cutting conditions. This leads to fewer insert changes and more predictable tool life, which enhances machine uptime and reduces unplanned stops. The coating supports heat resistance during demanding cuts, while the grade’s toughness helps to withstand shock from interrupted machining.

Predictable seating and secure clamping for consistent tool performance

Compatibility with ISO holders is determined by form, clearance, tolerance, fixation, size and thickness; the ISO 120404 format and square geometry ensure simple replacement in standard holders. The defined 11° clearance and 4.76 mm plate thickness promote consistent seating and chip flow, while the cylindrical hole with single-sided countersink provides secure clamping. Together, these features reduce variability at the cutting edge and simplify tool management in the workshop.

Coating and substrate explained for longer runtimes and better finishes

The PVD layer provides a hard, wear-resistant surface that lowers flank wear and helps maintain cutting-edge geometry across longer cycles. In combination with a quality carbide substrate this results in measurable benefits: improved wear resistance and a more consistent surface finish on the workpiece. For applications with increased breakout risk, the toughness of the grade reduces premature edge failure, so fewer interruptions occur during serial production.

Practical application advice to increase productivity on the shopfloor

When used for external and internal turning, the single-sided chipbreaker and the insert’s geometry are effective for controlling chips and stabilising the cut in both steady and interrupted passes. Select the holder and clamping set-up that match the insert’s form and thickness to achieve consistent results and repeatable part quality. The original Tungaloy design supports fit-and-forget routines that save set-up time and reduce cycle-to-cycle variation.

Contact Metav Werkzeuge for tailored application support and to secure original Tungaloy SPMT120404 AH6235 turning inserts; phone +49 2822 7131930 or email info@metav-werkzeuge.com for technical consultation and fast delivery.

Technical data

• Article number: 6903484
• Manufacturer SKU: TUN6903484
• SKU: 6903484-Tungaloy
• Model series: ISO turning indexable inserts

Facts

• Size (inscribed circle): 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Clearance angle: 11°
• Included angle: 90°

Special features

• Material: carbide
• Coating: PVD
• Grade: AH6235
• Shape: square
• Hole: with hole — cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: single-sided
• Application: turning
• Designed for stainless steels and interrupted cuts

FAQ

What materials is this insert best suited for? This insert, the SPMT120404 AH6235 turning insert from Tungaloy, is designed primarily for stainless steels and performs well in interrupted cutting conditions where toughness is required.

How does the AH6235 grade affect tool life? The AH6235 grade combines a tough carbide substrate with a PVD coating to improve edge integrity; this reduces chipping in interrupted cuts and typically extends effective tool life under such conditions.

Which holder features are required for correct compatibility? Compatibility depends on the ISO 120404 form, the 11° clearance, thickness and fixation method. Use a matching ISO holder and ensure correct clamping with a suitable backplate or clamping set.

Is this insert suitable for internal turning as well as external turning? Yes; the square geometry and chip control make the insert suitable for both external and internal turning, provided an appropriate holder and cutting parameters are selected.

What is the manufacturer SKU and article number for reordering? The manufacturer SKU is TUN6903484 and the article number is 6903484 for the Tungaloy SPMT120404 AH6235 turning insert.

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.