SPMR 120312 T5115 Wendeplatten - Tungaloy

The ISO compatibility and CVD-coated carbide construction deliver reliable performance and long tool life for cast-iron turning; the 1.2 mm corner radius provides robustness at interrupted cuts. Order the insert directly via Metav Werkzeuge or consult our application specialists for process optimisation.

SPMR 120312 T5115 turning insert – ISO square insert, Tungaloy

The SPMR120312-CM T5115 Tungaloy insert is an ISO-standard square, indexable insert developed for external and internal turning, optimised for cast-iron applications.

• ISO-standard square insert for turning
• CVD-coated carbide grade T5115
• 1.2 mm corner radius for robust cutting
• Compatible with standard 90° holders

Reliable cutting performance for cast-iron turning

The indexable plate is manufactured from carbide with a CVD-coated surface and the T5115 grade, giving a balanced mix of wear resistance and edge stability. This combination is particularly suited to cast iron, where the coating reduces abrasive wear while the substrate supports a sharp, long-lasting cutting edge. The chipbreaker CM guides swarf control to reduce built-up edge and maintain consistent cutting forces. These technical attributes translate directly into fewer insert changes and steadier cycle times during turning operations.

Predictable mounting and geometry for process stability

ISO standardisation ensures the plate matches holders that conform to the same form, clearance angle and tolerance class; compatibility depends on shape, 11° relief angle, plate thickness and size. The square 12 mm plate with a 90° cutting edge angle allows straightforward indexing for four usable edges, improving economy per insert. The plate’s 3.18 mm thickness and defined 1.2 mm corner radius provide rigidity at the cutting point, helping to avoid vibration in less rigid set-ups and enabling safer interrupted cuts. Explained simply: standardised geometry makes selection and machine set-up more predictable and reduces trial-and-error.

Enhanced surface finish and extended tool life

A controlled combination of substrate hardness and CVD coating yields better surface quality while extending tool life under typical turning feeds and speeds. The stable cutting edge of this universal grade reduces edge chipping and supports reproducible part quality. Selecting the correct chipbreaker and the CM geometry will further improve swarf formation and surface integrity. For manufacturing environments focused on productivity, the result is fewer reworks and a higher yield of parts meeting tolerance — a measurable benefit to throughput and overall process cost-efficiency.

Contact Metav Werkzeuge to discuss the suitability of the Tungaloy SPMR 120312 T5115 insert for specific turning tasks and to receive tailored application advice and availability

Technical data

• Article number: 6864748
• SKU: 6864748-Tungaloy
• Manufacturer SKU: TUN6864748
• Model series: ISO-Drehwendeschneidplatten
• Application: Turning

Numbers / Core technical data

• Corner radius: 1.2 mm
• Plate size: 12 mm
• Plate thickness: 3.18 mm
• Rake/relief angle: 11°
• Cutting edge angle: 90°

Special features

• Carbide material
• CVD-coated grade T5115
• Chipbreaker CM
• Square plate form
• Without hole
• ISO-standard indexable insert
• Universal grade optimised for cast iron
• For external and internal turning

FAQ

What materials is this insert best suited for?
The Tungaloy SPMR 120312 T5115 insert is optimised for cast iron applications; its CVD-coated carbide composition balances wear resistance and edge stability for that material group.

How many cutting edges are available on the plate?
As a square ISO plate, the insert offers four usable cutting edges when indexed; the 90° geometry supports straightforward indexing for efficient edge use.

What does the chipbreaker designation CM indicate?
The CM chipbreaker is designed to control swarf form for general turning in materials such as cast iron, improving evacuation and reducing the risk of built-up edge during stable machining.

Is this insert compatible with standard ISO holders?
The plate follows ISO form and dimensional conventions; compatibility depends on holder form, clearance, tolerance class and mounting size—holders matching the ISO designation will accommodate the plate.

Can the insert handle interrupted cuts?
The 1.2 mm corner radius and 3.18 mm thickness give the insert added robustness, making it suitable for conditions with occasional interruptions, provided the machining parameters and clamping are appropriate.

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.