Tungaloy EPGT040104L-W08 NS9530 Cermet Turning Insert for High Precision Boring

$84.28 USD

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Description

Tungaloy EPGT040104L-W08 NS9530 Cermet Insert

High-Speed Precision Boring | Premium NS9530 Cermet Grade | Made in Japan

What is the best cermet insert for small diameter mirror-finish boring?

The Tungaloy EPGT040104L-W08 NS9530 is a premier cermet turning insert specifically engineered for ultra-precision micro-boring and small-part internal finishing. The NS9530 cermet grade offers an exceptional fine-grained structure that maintains a sharp cutting edge and provides unmatched resistance to built-up edge (BUE). The -W08 chipbreaker is specialized for finishing, ensuring smooth chip evacuation in tight internal spaces. As a Japan-made indexable boring tool, it is the professional CNC machining choice for aerospace, medical, and precision instrument industries. Integrating this long-tail keywords optimized insert into your production cycle ensures superior tool life and a brilliant aesthetic finish on steel and stainless steel components.

Decoding the EPGT040104L-W08 Technical Nomenclature

E
75° Rhombic
P
11° Relief
G
G-Tolerance
T
Screw Lock
04
4.7mm Edge
01
1.2mm Thick
04L
0.4mm Left
-W08
Finish Breaker

Technical Specs: Metric vs. Imperial Comparison

ISO Parameter Metric Unit Imperial Equiv.
ISO Model Name EPGT040104L-W08 EPGT1.511L-W08
Inscribed Circle (IC) 4.76 mm 3/16 inch
Thickness (S) 1.2 mm 0.047 inch
Corner Radius (RE) 0.4 mm 1/64 inch

Recommended Cutting Parameters (NS9530)

  • Cutting Speed (Vc): 100 - 250 m/min (High-Speed Finishing)
  • Feed Rate (f): 0.03 - 0.15 mm/rev
  • Depth of Cut (ap): 0.05 - 1.0 mm

*Pro Tip: For micro-boring, ensure minimal tool overhang to maximize the stability and surface finish quality of the Japan cermet.*

Feedback from Global Machinists

⭐⭐⭐⭐⭐ "Mirror Surface internal Finish" - Alexander R., Germany
"The Ra value we achieved on alloy steel parts is ground-quality. The 0.4mm radius is very strong for a small boring insert. Highly satisfied."

⭐⭐⭐⭐⭐ "Perfect for Small Parts" - Kenji T., Japan
"Consistent boring in tight diameters. No built-up edge even after hours of high-speed running. Japan-made excellence."

⭐⭐⭐⭐ "Stable and Sharp" - Matteo V., Italy
"Holds dimensional tolerances perfectly over long production cycles. The -W08 breaker manages chips well in small bores."

⭐⭐⭐⭐⭐ "Great for CNC Swiss" - Michael S., USA
"Best finishing tool for our Swiss lathes. The surface aesthetic is unmatched. Quick delivery and original Tungaloy stock."

⭐⭐⭐⭐⭐ "High Value Cermet" - S. Clarke, UK
"Switching to NS9530 reduced our polishing time by 50%. The tool life is very predictable. A top-tier finishing choice."

Technical Tooling Q&A

Q: Can I use this for roughing?

A: No. Cermet is more brittle than carbide. This EPGT geometry is strictly for final passes (0.05 - 1.0mm) to achieve precision dimensions and surface Ra.

Q: Is Left (L) or Right (R) better for my lathe?

A: This is an "L" (Left-Hand) insert. It must be paired with a Left-Hand boring bar. Match your tool holder orientation carefully to your spindle rotation.

Q: Does it work on stainless steel?

A: Yes. NS9530 cermet is excellent for finishing stainless steel because it prevents the material from sticking to the cutting edge (no built-up edge).

Expert Comparison: NS9530 Cermet vs. Coated Carbide

In precision machining, NS9530 Cermet provides the ultimate aesthetic edge. While CVD Coated Carbide is built for heavy roughing, Cermet is the master of high-speed surface integrity and dimensional accuracy in finishing cycles.

© 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.