Tungaloy DCMT070204-24 NS9530 Cermet Turning Insert for Steel Finishing

$39.28 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

Tungaloy DCMT070204-24 NS9530 Turning Insert

High-Speed Steel Finishing Specialist | Premium Cermet Grade | Made in Japan

What is the best insert for achieving a mirror finish on carbon steel?

The Tungaloy DCMT070204-24 NS9530 is a high-performance cermet turning insert designed specifically for precision finishing. Unlike standard carbide, the NS9530 cermet grade provides exceptional chemical stability and resistance to built-up edge (BUE), which is critical for maintaining long-term dimensional accuracy and a high-gloss surface finish. The -24 chipbreaker is engineered for light-duty finishing to medium cutting, offering excellent chip control at varied feed rates. This Japan-made indexable turning tool is a favorite for CNC machining shops that prioritize surface aesthetics and tight tolerances in steel applications. By utilizing this long-tail keywords optimized insert, you can push cutting speeds higher while ensuring your tool life remains predictable and efficient.

Decoding the DCMT070204-24 Technical Nomenclature

D
55° Rhombic
C
7° Clearance
M
M Tolerance
T
Hole & Screw
07
7.8mm Edge
02
2.38mm Thick
04
0.4mm Radius
-24
Finishing

Technical Specs: Metric vs. Imperial Comparison

ISO Parameter Metric Designation Imperial Designation
ISO/ANSI Model DCMT070204-24 DCMT21.51-24
Inscribed Circle (IC) 6.35 mm 1/4 inch
Thickness (S) 2.38 mm 3/32 inch
Corner Radius (RE) 0.4 mm 0.016 inch

Why should I choose NS9530 cermet for precision finishing?

The NS9530 Grade is a specialized cermet (Ceramic-Metal) material that offers higher hardness and lower affinity for steel than standard tungsten carbide. This makes the DCMT070204-24 unbeatable for precision machining where surface brightness is mandatory. The -24 chipbreaker is designed with a balanced geometry that handles varying depths of cut effectively. In CNC machining, this indexable turning tool excels at high cutting speeds, where the cermet substrate maintains its edge sharpness far longer than coated carbide. If you are looking for a long-tail keywords solution for finishing carbon and alloy steels, this is the industry standard.

Recommended Cutting Parameters (NS9530)

  • Cutting Speed (Vc): 150 - 350 m/min
  • Feed Rate (f): 0.05 - 0.20 mm/rev
  • Depth of Cut (ap): 0.2 - 1.5 mm

*Optimization Tip: Cermet performs best at higher speeds. For the best surface finish, ensure your machine can reach the recommended RPM.*

Feedback from Global Machinists

⭐⭐⭐⭐⭐ "Mirror Finish Success" - Alexander P., Germany
"The NS9530 grade is incredible for steel. We replaced our old carbide finishing inserts and the difference in surface Ra is night and day. Mirror finish without extra polishing."

⭐⭐⭐⭐⭐ "Best for High Speed" - John D., USA
"Ran these at 300 m/min and they didn't even flinch. The tool life on this cermet is much better than I expected for such a sharp edge."

⭐⭐⭐⭐ "Very Sharp Edge" - Kenji S., Japan
"Typical Tungaloy precision. The 070204 size is perfect for our small-diameter work. Very stable dimensions throughout the entire run."

⭐⭐⭐⭐⭐ "Predictable Wear" - Luca M., Italy
"The -24 breaker works well even when we push the feed a bit. No unexpected chipping. Authentic Tungaloy quality."

⭐⭐⭐⭐⭐ "Highly Recommended" - Sarah W., UK
"Great results on carbon steel. The brightness of the part after the pass is exactly what our customer wanted. Fast shipping too."

Technical Tooling Q&A

Q: Can I use this for stainless steel?

A: While NS9530 is optimized for carbon and alloy steels, it can handle light finishing on some stainless series. However, for sticky stainless, a PVD carbide might be better.

Q: Does cermet require coolant?

A: Cermet can be used dry due to its heat resistance, but for finishing, light coolant often helps with chip evacuation and surface luster. Avoid thermal shock.

Q: Which tool holder series fits this insert?

A: This fits standard ISO holders for DCMT 0702 inserts, such as the SDJCR/L series or various boring bars (S...-SDUCR).

Expert Tip: Cermet vs. Carbide Comparison

For precision machining, Cermet (NS9530) provides much higher resistance to chemical wear than Tungsten Carbide. If you are experiencing "built-up edge" where metal sticks to your tool, switching to cermet will immediately improve your surface Ra and dimensional consistency.

© Technical Content by cnchome-beyond.com - Japan Tooling Excellence

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.