SNGN 120708 TZ120 Wendeplatten - Tungaloy

Taking advantage of ISO standardisation and the TZ120 cutting grade ensures reproducible results and predictable tool life in turning operations; the combination of a robust carbide substrate, a 90° square geometry and a 0.8 mm corner radius supports stable cutting and fine finishing. Order the insert via Metav Werkzeuge or consult their specialists for matching holders and clamping components.

SNGN120708 TZ120 Tungaloy indexable insert for turning — ISO 90° square, 0.8 mm corner radius

The SNGN120708 TZ120 is an ISO-form indexable insert intended for external and internal turning, offering a balanced combination of wear resistance and edge stability for industrial metalcutting.

• ISO-compatible square insert 90° geometry
• Tungaloy TZ120 grade for wear resistance
• Carbide substrate for consistent cutting life
• 0.8 mm corner radius for fine turning

Engineered for consistent, productive turning

The insert is part of an ISO series designed to deliver repeatable performance in serial production and jobbing environments. The TZ120 grade complements the geometry to provide a balance between wear resistance and toughness, which reduces the frequency of tool changes and supports steady cycle times. The 90° format gives rigidity for shoulder cuts, while the 0.8 mm corner radius helps to achieve improved surface finishes without sacrificing edge life. These properties make this cutting element suitable where consistent dimensional tolerances and predictable tool behaviour are required.

Compatibility and mounting for reliable integration

Compatibility with toolholders is governed by form, clearance angle, tolerance class, clamping method, size and thickness; correct matching ensures secure seating and repeatable positioning. The insert is square with no centre hole and a plate thickness of 7.94 mm, so it requires a holder designed for SNGN-type plates and the ISO designation 120708. Typical system components include a compatible external holder or boring bar, a backing shim or clamping kit and replacement clamping screws, enabling straightforward replacement and minimising machine downtime.

Material selection and the benefits of the cutting grade

Manufactured from a wear-resistant carbide substrate and finished in Tungaloy’s TZ120 grade, the insert is optimised for a wide range of steels and mixed production duties. The grade supports stable chip formation and edge stability, which is particularly valuable when machining varying batch sizes or interrupted cuts. By combining a robust substrate with a tailored cutting grade, the design lowers the risk of premature edge failure and supports reproducible surface quality across shifts and operators.

Typical uses and operational advantages

Suitable for both external and internal turning, the plate performs well in general turning operations where medium to high stability is available. The 90° geometry offers rigidity on shoulder operations and the smaller corner radius aids in achieving tighter radii and better finishes on turned parts. Absence of a chipbreaker requires selection of cutting parameters matched to material and rigidity; when paired with correct inserts and holders, the system supports efficient material removal and predictable tool change intervals, improving process reliability on the shop floor.

For reliable Tungaloy performance and assistance in selecting the correct holder or clamping kit, contact Metav Werkzeuge for technical advice and ordering at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Manufacturer article number: 6118737
• SKU: 6118737-Tungaloy
• Manufacturer SKU: TUN6118737
• Product designation: SNGN120708 TZ120
• Model series: ISO turning indexable inserts
• Material: carbide
• Grade: TZ120
• Brand: Tungaloy
• Intended application: turning

Numbers / Core technical data

• Plate size: 12 mm
• Plate thickness: 7.94 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Geometry angle: 90°
• ISO code: 120708
• Centre hole: none

Designs / Special features

• Square plate form
• No chipbreaker supplied
• ISO conformity for reproducible positioning
• Compatibility depends on form, clearance, tolerance, clamping, size and thickness
• System requires compatible holder or boring bar, backing shim/clamping kit and replacement screws
• Suitable for external and internal turning

FAQ

What materials can this insert machine effectively?
The SNGN120708 TZ120 indexable insert from Tungaloy is optimised for a broad range of steels and general-purpose turning applications, offering a balance of wear resistance and edge stability.

How does the 0.8 mm corner radius affect finish and strength?
A 0.8 mm corner radius on the insert improves surface finish and reduces the likelihood of edge chipping during moderate cutting; the Tungaloy grade helps maintain edge integrity under standard turning feeds.

Is a chipbreaker included with this insert?
This particular plate is supplied without a chipbreaker; chip control must therefore be achieved by parameter optimisation, holder selection and, if needed, use of appropriate coolant strategies.

Which holder type is compatible with the plate geometry?
Compatibility depends on the holder accepting SNGN-form, ISO 120708 plates with 12 mm size and 7.94 mm thickness; matching by form, clearance angle and clamping style is essential for secure mounting.

What is the manufacturer SKU for ordering reference?
Ordering and inventory reference for this Tungaloy turning insert is SKU 6118737-Tungaloy or manufacturer SKU TUN6118737.

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.