Tungaloy EPGT040102L-W08 NS9530 Cermet Turning Insert for Precision Boring

$84.28 USD

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Description

Tungaloy EPGT040102L-W08 NS9530 Cermet Insert

Ultra-Precision Boring | Premium NS9530 Cermet | Crafted in Japan

What is the best boring insert for high-precision small hole finishing?

The Tungaloy EPGT040102L-W08 NS9530 is a high-accuracy cermet turning insert specifically designed for micro-boring and small-diameter internal finishing. The NS9530 cermet grade is engineered with a fine-grained structure that provides a sharp, stable cutting edge and exceptional resistance to built-up edge (BUE). The -W08 chipbreaker is optimized for ultra-light depths of cut, ensuring superior chip evacuation in confined spaces. This Japan-made indexable boring tool is the professional CNC machining choice for medical, aerospace, and watchmaking industries where dimensional consistency and surface Ra are paramount. Integrating this long-tail keywords optimized insert into your production provides longer tool life and unmatched surface brilliance.

Decoding the EPGT040102L-W08 Technical Nomenclature

E
75° Rhombic
P
11° Relief
G
G-Tolerance
T
Screw Lock
04
4.7mm Edge
01
1.2mm Thick
02L
0.2mm Left
-W08
Finish Breaker

Technical Specs: Metric vs. Imperial Comparison

ISO Parameter Metric Unit Imperial Designation
ISO Model Name EPGT040102L-W08 EPGT1.510.5L-W08
Inscribed Circle (IC) 4.76 mm 3/16 inch
Thickness (S) 1.2 mm 0.047 inch
Corner Radius (RE) 0.2 mm 0.008 inch

Recommended Cutting Parameters (NS9530)

  • Cutting Speed (Vc): 100 - 250 m/min (High-Speed Fine Finishing)
  • Feed Rate (f): 0.03 - 0.12 mm/rev
  • Depth of Cut (ap): 0.05 - 0.8 mm

*Pro Tip: For micro-boring, ensure minimal tool overhang to maintain rigidity. Cermet requires constant speed to achieve the best surface Ra.*

Global Machinist Feedback

⭐⭐⭐⭐⭐ "Perfect for Watch Parts" - B. Muller, Switzerland
"Using the EPGT04 for tiny brass and steel components. The surface finish is absolute mirror. NS9530 is remarkably sharp."

⭐⭐⭐⭐⭐ "Excellent Boring Control" - R. Tanaka, Japan
"Minimal vibration in small holes. The 0.2mm radius is perfect for sharp corners and tight tolerances. Tungaloy quality is unmatched."

⭐⭐⭐⭐ "Great Chip Management" - John D., USA
"Even at 0.05mm depth of cut, the -W08 breaker breaks chips cleanly. No birdnesting inside the holes."

⭐⭐⭐⭐⭐ "Mirror Surface" - Luca B., Italy
"We use this for precision valve seats. The shine on the steel is ground-quality. Very reliable cermet grade."

⭐⭐⭐⭐⭐ "Long Tool Life" - A. Clarke, UK
"Holds size perfectly over long runs. Fast shipping and the inserts arrived in original Tungaloy packaging."

Technical Tooling Q&A

Q: Is Cermet better than Carbide for micro-boring?

A: Yes. Cermet has lower chemical affinity with the workpiece, preventing built-up edge and maintaining a sharper edge longer for finishing cycles.

Q: What is the difference between Left (L) and Right (R) in this model?

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

Q: Can I use this for roughing?

A: No. Cermet is brittle. The 0.2mm radius and EPGT geometry are strictly for final aesthetic finishing and dimensional sizing.

Expert Comparison: Cermet Finishing

In precision machining, NS9530 Cermet provides the aesthetic edge. While CVD Coated Carbide is built for heavy strength, Cermet is the master of high-speed surface integrity. Protect your indexable turning tool by reserving this grade for final passes.

© 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.