Korloy TNMX160404R NC3030 (Right Hand) Tough Steel Finishing Insert for Interrupted Cuts (10pcs)
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The Original Korloy TNMX160404R NC3030 is a specialized Right-Hand Triangular Turning Insert engineered for Demanding Steel Machining (P-Group). Featuring the high-toughness NC3030 Grade, this insert is specifically designed to handle interrupted cuts and unstable machining conditions that would cause standard grades to chip. The TNMX geometry and 0.4mm corner radius provide a sharp, clean cut, ensuring a premium surface finish even on tough, scaly, or non-homogeneous steel workpieces.
Engineered for Reliability: If you are struggling with edge chipping during interrupted cuts or when machining hexagonal bars, NC3030 is your solution. It combines a thick CVD coating with a high-strength substrate to absorb mechanical shocks while maintaining a sharp finishing edge.
Technical Specifications:
| ISO Designation | TNMX 160404R |
| Hand of Tool | Right Hand (R) |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.4 mm / (1/64") |
| Grade | NC3030 (Toughened Steel Specialist) |
Core Performance Benefits:
- Maximum Edge Security: Optimized for interrupted cutting where mechanical shock resistance is the priority.
- Shock-Absorbing Substrate: The NC3030 core is designed to prevent crack propagation, extending tool life in rough conditions.
- Precision TNMX Geometry: Delivers excellent chip breaking even at light depths of cut, protecting the finished surface.
- Versatile PVD/CVD Hybrid Tech: Provides a smooth surface to reduce friction and heat build-up.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Low Carbon Steel (Interrupted) | 140-280 m/min | 0.08-0.22 mm/rev | 0.2-2.0 mm |
| Alloy Steel (Heavy Surface) | 120-240 m/min | 0.06-0.18 mm/rev | 0.2-1.8 mm |
Compatible Tool Holders:
Fits all standard Right-Hand (R) or Neutral (N) tool holders designed for 16-size inserts:
- External Holders: MTJNR 2020K16 / MTJNR 2525M16 (ANSI 12-4B / 16-4D)
- Internal Boring Bars: S25S-WTJNR16 / S20R-WTJNR16
Machinist Tip: NC3030 vs. NC3020
Choosing the right protection for your cutting edge:
High Toughness. Best for断续切削 (interrupted cuts), hexagonal bars, or parts with holes. It sacrifices a bit of wear resistance for maximum durability against chipping.
High Versatility. Best for continuous turning. It is harder than NC3030 and will last longer on smooth, clean workpieces, but is more likely to crack under heavy impact.
Pro Advice: If you see "micro-chipping" on your NC3020 inserts, upgrade to this NC3030 immediately. For finishing with a 0.4mm radius, keep your feed rate below 0.15mm/rev for the best surface quality.
Packaging: 10 pieces per box.
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Technical FAQ & Buying Guide
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.
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.
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.
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.
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.
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.