CCGT 09T302 J740 Wendeplatten - Tungaloy

Benefit from the combination of wear resistance from the J740 grade and precise geometry for consistent turning results; order directly via Metav Werkzeuge or consult our advisers for application-specific selection.

CCGT 09T302 J740 – ISO rhombic turning insert (80°) by Tungaloy

CCGT 09T302 J740 is an indexable turning insert developed for general external and internal turning, offering stable chip control and dependable cutting-edge performance.

• Wear-resistant J740 grade
• Rhombic insert with 80° cutting angle
• Cylindrical hole with 40°–60° countersink
• 0.2 mm nose radius for fine turning

Stable machining through a wear-resistant grade

The combination of the J740 cutting grade and a carbide substrate delivers high wear resistance and good edge stability for turning tasks. This behaviour reduces unexpected tool changes and supports steady productivity in repetitive operations. The J740 formulation balances hardness and toughness to resist flank wear while maintaining reliable cutting-edge integrity, which is particularly valuable in medium-duty turning where consistent component tolerance is required.

Geometry designed for consistent surface quality

The ISO rhombic shape with an 80° main cutting angle and a 0.2 mm nose radius produces a precise contact geometry that minimises vibration and improves finish on the workpiece. A small radius is suited to fine turning and detail work, limiting deflection and enabling closer tolerances. The insert thickness of 3.97 mm and the specified clearance angle of 7° ensure a stable seat in compatible holders, helping to maintain the intended cutting geometry throughout the tool life.

Secure clamping and clear mounting standards

Compatibility with the toolholder is governed by defined ISO parameters: form, free angle, tolerance class, fastening, size and thickness. The insert features a cylindrical hole with a single-sided countersink (40°–60°) for positive location and reliable clamp engagement. These characteristics simplify mounting checks and reduce the risk of misalignment during index changes. Using holders and clamping kits that match these ISO criteria provides predictable repeatability and safer operation in production environments.

Practical selection and process advice

Select the matching chipbreaker and the J740 grade based on material, machining type and machine stability; the chipbreaker choice controls chip form and evacuation, directly affecting cycle times and surface finish. For general-purpose turning of steels and common alloys the J740 grade offers a pragmatic balance between tool life and edge robustness. For specialist materials or highly interrupted cuts, consider a dedicated grade or geometry and consult technical advisors to align coolant, speeds and feeds with the insert’s capabilities.

For application advice or to source the Tungaloy turning insert, contact Metav Werkzeuge for tailored recommendations and fast supply.

Technical data

• Manufacturer article number: 6801325
• SKU: 6801325-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: CCGT09T302 J740
• Material: Carbide (Hartmetall)

Facts

• Size: 09
• Thickness: 3.97 mm
• Nose radius: 0.2 mm
• Cutting angle: 80°
• Clearance angle: 7°

Special features

• Grade: J740 (Tungaloy)
• Chipbreaker: one-sided
• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Shape: rhombic
• Application: Turning (external and internal)

FAQ

What materials is this insert suitable for? The CCGT 09T302 J740 insert is designed as a general-purpose turning grade; the J740 carbide mix performs well on a broad range of steels and typical alloys when combined with the appropriate chipbreaker and cutting data.

How does the hole and countersink affect mounting? The cylindrical hole with a single-sided countersink (40°–60°) ensures positive seating and repeatable clamping in ISO-compatible holders, improving stability during index changes for the CCGT09T302 J740 insert.

Which chipbreaker should be chosen for finishing cuts? For finishing operations, pair the J740 grade with a fine-profile chipbreaker to produce short, manageable chips and a refined surface finish while keeping cutting forces moderate.

Can this insert be used for internal turning? Yes, the rhombic geometry and specified clearance angle make the insert suitable for both external and internal turning applications when mounted in a compatible holder.

What effect does the 0.2 mm nose radius have on tolerances? A 0.2 mm nose radius supports tighter corner geometry and reduces form deviation in fine turning; it is recommended where close dimensional control and a smooth surface are required.

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.