SDKR 1203AE NS740 Wendeplatten - Tungaloy

The combination of a cermet cutting grade for superior surface finish and a square 12 mm form for secure seating delivers consistent results in finishing operations. Choose this insert for tasks that prioritise dimensional accuracy, stable wear behaviour and easy integration into matching milling systems; order directly via Metav Werkzeuge or consult the specialists if required.

SDKR 1203AE NS740 indexable milling insert for precision finishing — Tungaloy

SDKR 1203AE NS740 is a square indexable insert designed for finishing and light machining of steel within Tungaloy milling systems

• Cermet grade NS740 for finishing
• Square 12 mm plate for precise seating
• 3.18 mm thickness for stable clamping
• One-sided chipbreaker for controlled chips

Achieve consistent finishing and tight tolerances with a cermet grade built for surface quality

The SDKR1203AE NS740 insert is engineered around the NS740 cermet grade to prioritise surface finish and dimensional accuracy in finishing passes. Cermet combines ceramic and metallic constituents to maintain a sharp cutting edge and reduce built-up edge, which helps to produce a smooth component face with minimal post-process work. This makes the insert particularly suitable where a fine finish and repeatable part geometry are required rather than heavy material removal.

Reliable system compatibility and secure seating for trouble-free integration

Designed for use in compatible Tungaloy milling bodies, the insert requires correct seat geometry and clamping hardware to perform as intended. The square 12 mm format and 3.18 mm thickness provide a stable contact area in the pocket, while the lack of a central hole means the insert is retained by the clamping screw and backing plate specified by the system. Matching the cutter body, insert geometry and clamping parts ensures repeatable positioning and reduces setup variation during production.

Controlled chip formation and predictable wear for higher process reliability

The one-sided chipbreaker and the cermet substrate work together to produce manageable chips and an even wear pattern during finishing tasks. Even in short, high-precision cycles, this combination contributes to a constant cutting edge condition, reducing the frequency of unexpected tool changes and supporting a steady production flow. For operations where process stability and low variation in surface quality are priorities, the insert’s design improves reproducibility across batches.

Practical notes on edge geometry and typical applications

The insert features a sharp corner with a zero corner radius and a 90° included angle, combined with a 15° clearance behind the cutting edge; this geometry favours crisp shoulder definition and accurate contour transitions. Given the design and the NS740 grade, the component is optimised for finishing and light machining of steel, focusing on consistent wear and superior surface results rather than heavy roughing duties. Careful selection of cutting parameters in accordance with the toolholder and workpiece material will extend service life and preserve the intended surface quality.

Order genuine Tungaloy NS740 finishing inserts from Metav Werkzeuge — for technical advice or to confirm system compatibility contact our consultants at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6821495
• Manufacturer SKU: TUN6821495
• SKU: 6821495-Tungaloy
• Model series: Fräswendeschneidplatten
• Designation: SDKR1203AE NS740

Dimensions & key figures

• Size: 12 mm
• Thickness: 3.18 mm
• Included angle: 90°
• Clearance angle: 15°
• Corner radius: 0

Materials & features

• Material: carbide (Hartmetall)
• Grade: NS740 (cermet)
• Chipbreaker: one-sided
• Shape: square
• Hole: without hole
• Application: milling (Fräsen)

FAQ

What applications is this insert suited for?
The SDKR1203AE NS740 Tungaloy indexable insert is intended for finishing and light machining of steel, where surface quality and dimensional accuracy are the main objectives.

Can this insert be used in non-Tungaloy cutter bodies?
The insert requires a matching seat geometry and clamping system; SDKR-style inserts are optimised for Tungaloy milling systems, so verify pocket geometry and clamping compatibility before use.

What does the NS740 designation mean?
NS740 denotes a cermet grade tailored to finishing operations, offering good edge sharpness, consistent wear and improved surface results in steel applications.

How is the insert clamped without a hole?
Retention is achieved via the specified clamping screw and backing plate in the milling system; the square form and 3.18 mm thickness ensure stable seating under correct clamping conditions.

Is this insert suitable for heavy roughing?
No. The SDKR1203AE in NS740 is optimised for finishing to light machining; for heavy material removal, a different grade and insert geometry should be selected.

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.