APMT 120408 GH330 Wendeplatten - Tungaloy

Robust wear resistance from the GH330 grade combined with a secure parallelogram seat and a precise 0.8 mm corner radius ensures consistent milling performance and fewer tool changes; order the insert directly via Metav Werkzeuge or consult our specialists for system compatibility and sizing.

APMT120408 GH330 indexable milling insert – parallelogram, 0.8 mm radius (Tungaloy)

APMT120408 GH330 Tungaloy indexable insert designed for general milling applications where stable chip control and repeatable seating are required

• Parallelogram shape for secure clamping
• GH330 grade for wear resistance
• 0.8 mm corner radius for versatile machining
• Cylindrical hole with one-sided countersink

Reliable performance for demanding milling tasks

The insert combines a Tungaloy carbide composition with the GH330 grade, offering a balance of wear resistance and edge stability suited to face, shoulder, slot, high-feed and contour milling. The integrated one-sided chipbreaker supports controlled chip formation across a range of feeds, reducing the risk of built-up edge and improving surface finish. Where predictable tool life and repeatable results are essential, this indexable insert delivers a measurable increase in production uptime and fewer unscheduled tool changes, which supports cost-effective machining cycles and consistent part quality.

Precision geometry that reduces set-up time and enhances stability

A parallelogram plate form with a 0.8 mm corner radius and a cylindrical hole with one-sided countersink (40°–60°) ensures exact seating in compatible cutter bodies. The defined thickness of 4.76 mm, main angle of 85° and relief angle of 11° provide a stable contact surface and clear locating datum, which minimises vibration and repeatability errors during operation. Matching the insert to the correct clamping screw and seat avoids misalignment; the system design—comprising the cutter body, the insert, the clamping screw and, where applicable, a shim—must be technically compatible to guarantee the intended clamping force and process stability.

Process security and economical operation for series production

Specified as part of the milling insert series for Tungaloy systems, the APMT120408 GH330 supports long production runs by combining consistent edge integrity with reliable chip control. The combination of material selection and designed chip evacuation reduces thermal and mechanical wear on the cutting edge, improving average life per index and the number of effective cutting edges per workpiece produced. For operations prioritising throughput and surface quality, this insert contributes to measurable productivity gains and reduced tool consumption, while remaining straightforward to replace and index in standard tooling systems.

For GH330 performance and assured process stability, contact Metav Werkzeuge for availability and expert system advice: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6800929
• Manufacturer SKU: TUN6800929
• SKU: 6800929-Tungaloy

Facts

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Main angle: 85°
• Relief angle: 11°
• ISO designation: 120408

Special features

• Material: carbide
• Grade: GH330 (Tungaloy)
• Plate form: parallelogram
• Hole: cylindrical hole + one-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Series: milling indexable inserts
• Typical application: milling (face, shoulder, slot, high-feed, contour)

FAQ

What materials can be machined with this insert?
The insert is made of carbide in GH330 grade and is designed for general milling tasks; it is suitable for a broad range of materials commonly processed in milling operations, with particular strengths in maintaining edge life under mixed cutting conditions.

Is the insert compatible with all Tungaloy milling bodies?
Compatibility requires matching the plate seat, geometry and clamping system; the APMT120408 GH330 insert fits Tungaloy milling systems that accept the APMT120408 ISO designation and the specified parallelogram seat.

How does the 0.8 mm corner radius affect machining?
A 0.8 mm corner radius offers a compromise between strength and detail: it improves edge robustness for interrupted cuts and increases tool life while still allowing reasonably fine contouring compared with larger radii.

Does the insert include a chipbreaker and what is its benefit?
This grade features a one-sided chipbreaker, which promotes controlled chip fragmentation and evacuation, reducing the chance of long stringy chips and supporting stable cutting conditions at higher feed rates.

What is required for a secure clamping and repeatable set-up?
Secure clamping relies on a compatible cutter body, the correct clamping screw and, where applicable, a matching shim; the parallelogram form and the countersunk hole ensure consistent seating when the system components are technically matched.

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.