SPMT 120404 T5115 Wendeplatten - Tungaloy

High-performance indexable insert with CVD-coated carbide and a single-side chipbreaker delivers stable edge life and controlled chip formation for efficient turning operations; compatible with ISO holders when matched by form and size. Order or request technical advice via Metav Werkzeuge for rapid procurement and application support.

SPMT 120404 T5115 indexable insert for turning — Tungaloy

SPMT120404 T5115 is an ISO-format turning insert designed for general external and internal turning, offering robust chip control and reliable edge stability for cast iron applications

• CVD-coated universal grade T5115
• Suitable for cast iron turning
• Square ISO insert 12 mm, 0.4 mm radius
• Single-side chipbreaker with centre hole

Consistent chip control for productive turning

The combination of a CVD-coated surface and a balanced T5115 grade delivers a reliable compromise between wear resistance and edge stability. The coating reduces flank wear and improves resistance to built-up edge, which translates into longer tool life and fewer index changes during batch runs. The integrated single-side chipbreaker is tuned for predictable chip control, reducing the risk of entanglement and aiding machine uptime. For shops processing predominantly cast iron, this balanced grade provides consistent performance without demanding specialised feeds or speeds.

Precision geometry that supports repeatable results

Designed to ISO standards, the insert's square shape and 12 mm size combine with a 0.4 mm corner radius to offer a good balance between strength and finishing capability. The 11° relief angle and a plate thickness of 4.76 mm contribute to stable seating in the pocket and lower cutting forces in medium-duty cuts. The central hole with a cylindrical bore and single-sided countersink (40°–60°) ensures secure clamping and reproducible orientation in the cutter body. These geometry features help maintain dimensional accuracy across series production and simplify insert changeover procedures.

Practical compatibility and application guidance

Compatibility with a holder depends on form, relief angle, tolerance class, attachment method, size and thickness; the insert integrates into a typical ISO turning system comprising insert, external holder or boring bar, and clamping hardware. The ISO-format design facilitates interchangeability with standard toolholders when the specified dimensions match. For best results, select the chipbreaker and grade in accordance with workpiece stability and machining strategy: choose more aggressive chip control for interrupted cuts or reduced overhang, and prefer the balanced universal grade for mixed-cast-iron batches.

Reduced setup complexity for shop-floor efficiency

Using a standardised ISO insert such as this one simplifies tooling logistics and reduces the variety of holders and spare parts required. The CVD-coated carbide composition offers robustness for variable production environments, and the standardised dimensions aid toolpath consistency when programming CNC cycles. By reducing unexpected tool changes and improving edge life, the component supports smoother production flow and predictable maintenance intervals.

For technical selection and availability of the Tungaloy SPMT120404 T5115 insert, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for detailed application advice and order handling

Technical data

• Manufacturer article number: 6864801
• SKU: 6864801-Tungaloy
• Manufacturer SKU: TUN6864801
• Item name: SPMT120404 T5115 Tungaloy insert

Core data

• Insert designation: SPMT120404
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 11°
• Included angle: 90°

Materials & features

• Material: carbide
• Coating/type: CVD-coated carbide (T5115)
• Application: turning (external and internal)
• Chipbreaker: single-side
• Mounting: with centre hole; cylindrical bore + one-sided countersink (40°–60°)
• Plate form: square
• Model series: ISO turning indexable inserts
• Manufacturer: Tungaloy

FAQ

Is this insert suitable for cast iron machining?
Yes. The T5115 grade on the SPMT120404 insert is a universal CVD-coated carbide developed for cast iron, offering a balanced mix of wear resistance and edge stability suitable for typical cast iron turning applications.

What holder compatibility is required for this insert?
Compatibility depends on form, relief angle, tolerance class, attachment method, size and thickness; the ISO-format SPMT120404 insert fits holders designed for square 12 mm inserts with the corresponding pocket and clamping geometry.

How does the chipbreaker affect machining?
The single-side chipbreaker on this insert improves chip control for continuous and interrupted cuts, reducing chip entanglement and supporting safer, more predictable machining cycles.

Can the insert be used for internal turning/boring?
Yes. The ISO-format insert is suitable for both external and internal turning when installed in an appropriate boring bar or internal holder matched to the insert dimensions and clamping requirements.

What advantages does the CVD coating provide?
The CVD-coated layer enhances wear resistance and reduces flank wear under typical turning conditions, which helps extend tool life and maintain surface finish over longer production runs.

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.