SCMT 120404 NS9530 Wendeplatten - Tungaloy

Benefit from the combination of a sharp uncoated cermet grade for superior surface quality, a 0.4 mm corner radius for precise contours, and the standardised ISO SCMT form for straightforward toolholder compatibility; order via Metav Werkzeuge or consult our technical advisors for application-specific selection.

SCMT120404 NS9530 uncoated cermet turning insert — finishing grade by Tungaloy

SCMT120404 NS9530 is an ISO-format square turning insert designed for fine finishing in steel turning operations

• Uncoated cermet for superior surface finish
• 0.4 mm corner radius for precise contours
• 7° clearance angle reduces cutting forces
• ISO SCMT shape, 12 mm size, 4.76 mm thickness

Consistent high-quality finishing for turning operations

The combination of uncoated cermet and a sharp cutting geometry delivers a clear benefit: consistently improved surface finish on steel components under continuous cutting conditions. Cermet materials excel in finishing because they maintain a keen edge at low to moderate cutting speeds, which reduces cutting smearing and produces finer surfaces than many coated grades. This finishing grade is particularly suited to turning tasks where small depths of cut and steady feed rates are common, delivering reliable part quality and minimised rework.

Lower cutting forces and stable chip control for predictable results

A 0.4 mm corner radius paired with a 7° clearance angle results in reduced contact area and lower cutting forces, which helps to preserve the cutting edge and stabilise machining. The single-sided chipbreaker and the sharp edge design favour continuous chips and smooth evacuation when machining steel in finishing passes. Less vibration and predictable chip flow translate into better repeatability and reduced risk of cold welding on the cutting edge, supporting efficient production runs with consistent dimensional results.

Simple integration into ISO tool systems and practical handling

Built to ISO SCMT dimensions with a 12 mm size and 4.76 mm thickness, the insert is compatible with common square insert toolholders; compatibility depends on form, clearance, tolerance, fastening and plate thickness. The insert features a cylindrical hole with a single-sided countersink (40°–60°) for secure clamping and fast replacement. When used with an appropriate clamping set and holder, the system offers rapid exchange, predictable seating and minimal setup variation — benefits that help reduce idle time at the machine and keep production flowing.

Contact Metav Werkzeuge for application advice on Tungaloy finishing inserts or to request a material-specific recommendation; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6998500
• Manufacturer SKU: TUN6998500
• Model series: ISO-Drehwendeschneidplatten

Facts

• Geometry: SCMT120404
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Main angle: 90°

Special features

• Material: tungsten carbide
• Grade/coating: NS9530 uncoated cermet
• Chipformer: one-sided
• Hole style: cylindrical hole + single-sided countersink (40°–60°)
• Plate form: square
• Intended application: turning
• Typical use: finishing on steel, continuous cut

FAQ

Is this insert suitable for finishing steel components?
Yes. The SCMT120404 NS9530 is a finishing-grade uncoated cermet designed for turning steel, offering a sharp edge and good surface quality for continuous cutting conditions.

What are the main dimensional specifications to check for toolholder compatibility?
Check the ISO SCMT designation, 12 mm size, 4.76 mm thickness and the cylindrical hole with countersink; compatibility is determined by form, clearance, tolerance class, fastening and thickness.

Can this insert be used for interrupted cuts?
The NS9530 finishing grade is optimised for continuous cuts and small depths of cut; for heavy interruptions a more robust grade is recommended than this finishing cermet.

How does the 0.4 mm corner radius affect the machined part?
A 0.4 mm corner radius produces precise contours with improved tool life in finishing operations and helps reduce stress concentrations at edges compared with a perfectly sharp corner.

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.