SPMR 120308 T5115 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide, a universal T5115 grade for cast iron and a compact 0.8 mm corner radius to secure consistent chip control and long tool life; order through Metav Werkzeuge or consult our team for compatibility advice.

SPMR 120308 T5115 square ISO turning insert by Tungaloy — CVD-coated carbide, 0.8 mm radius

SPMR120308 T5115 is a square ISO indexable turning insert designed for general turning applications on cast iron, featuring a one-sided chipbreaker and a robust CVD-coated carbide substrate.

• CVD-coated carbide for long edge life
• Universal grade for cast iron machining
• Square ISO insert for stable positioning
• One-sided chipbreaker for predictable chips

Consistent productivity for cast iron turning

The combination of a CVD-coated carbide substrate and the T5115 grade delivers a balanced compromise between wear resistance and edge stability, which is particularly beneficial for casting materials. The coating reduces adhesion and thermal wear, extending the interval between indexings or insert changes; this translates into fewer interruptions on the shop floor and improved throughput. For production environments where reproducible results matter, the insert’s one-sided chipbreaker ensures controlled chip formation and evacuation, reducing the risk of reruns and machine downtime.

Geometry and clamping that support accurate cuts

Designed to ISO dimensions, the square indexable insert offers reliable seating and repeatable orientation in compatible holders. The 0.8 mm corner radius supports a good balance between edge strength and surface finish, making it suitable for both finishing passes and light-medium stock removal. The insert’s 11° relief angle and 90° insert corner geometry provide stable engagement with the workpiece, helping to maintain consistent cutting forces and minimise vibration during turning operations.

Predictable tool life and process security

Thanks to the combination of carbide substrate and CVD treatment, the grade resists abrasive wear typical when machining cast iron. This predictable wear behaviour supports process planning: cycle times and tool-change intervals can be estimated with greater confidence, improving cost-efficiency in batch production. Where surface integrity matters, the insert’s construction contributes to repeatable finishes and lowers scrap rates, aligning with objectives for high process reliability and steady output quality.

Practical compatibility and selection guidance

The insert is supplied in the ISO designation SPMR120308 and is intended for use with matching external toolholders or boring bars; compatibility is determined by insert shape, clearance angle, tolerance class, clamping method, size and thickness. The design has no hole, is square, and measures 12 mm with a plate thickness of 3.18 mm, making it straightforward to match with standard ISO clamping systems. Select a holder that complements the insert’s one-sided chipbreaker and the intended feed and speed range to achieve the best balance of performance and economy.

Choose the Tungaloy T5115 grade for reliable cast iron turning — contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 to confirm compatibility and request availability

Technical data

• Article number: 6864747
• Manufacturer SKU: TUN6864747
• SKU: 6864747-Tungaloy

Numbers / Core technical data

• ISO designation: 120308
• Size: 12 mm
• Plate thickness: 3.18 mm
• Corner radius: 0.8 mm
• Relief angle: 11°
• Insert angle: 90°

Designs / Special features

• CVD-coated carbide
• Grade: T5115 (universal for cast iron)
• One-sided chipbreaker
• Square insert form
• No hole
• ISO turning insert series

FAQ

What materials is this insert optimised for?
The T5115 grade is formulated as a universal option for machining cast iron; the SPMR120308 T5115 insert performs best when turning various cast-iron grades.

How is the insert mounted in a holder?
Mounting requires a compatible ISO external holder or boring bar that matches the insert’s square form, thickness and clamping method; the insert has no hole and uses standard clamping systems.

Which edge radius should be chosen for finishing?
The 0.8 mm corner radius on this insert offers a compromise between edge strength and surface finish; for finer finishes, a smaller radius insert would be selected, while heavier cuts benefit from larger radii.

Is the coating suitable for higher cutting speeds?
The CVD coating improves thermal and abrasive resistance, making the insert suitable for productive cutting speeds typically used for cast-iron turning under stable conditions.

How does the chipbreaker affect machining?
The one-sided chipbreaker provides controlled chip formation and evacuation, which reduces the likelihood of snarled chips and supports consistent surface quality during turning.

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.