Korloy TNMX160408R NC3030 (Right Hand) Tough Semi-Finishing Insert for Interrupted Cuts (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy TNMX160408R NC3030 is a heavy-duty Right-Hand Triangular Turning Insert specifically engineered for High-Impact Steel Machining (P-Group). Utilizing the ultra-tough NC3030 Grade, this insert excels where others fail: heavy interrupted cuts, scaly surfaces, and unstable machine setups. The TNMX geometry coupled with a robust 0.8mm radius provides the ultimate structural integrity for the cutting edge, ensuring reliable performance in the most demanding environments.
The Impact Specialist: NC3030 features a thick, multi-layered CVD coating and a specialized substrate designed to arrest crack propagation. If your inserts are chipping due to cross-holes, keyways, or uneven surfaces, the TNMX160408R NC3030 is your go-to reliability specialist.
Technical Specifications (Metric & Imperial):
| ISO Designation | TNMX 160408R |
| Hand of Tool | Right Hand (R) |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.8 mm / (1/32") |
| Grade | NC3030 (Maximum Toughness Steel Specialist) |
Core Performance Benefits:
- Maximum Edge Reliability: Engineered to withstand severe mechanical shocks without catastrophic chipping.
- Enhanced Structural Strength: The 0.8mm radius offers a wide, strong contact zone for medium-depth cuts.
- High Heat Insulation: The CVD Al2O3 coating layer protects the substrate from the thermal spikes found in dry machining.
- Active Chip Control: TNMX geometry ensures chips are broken quickly, even in gummy low-carbon steels.
Recommended Cutting Parameters:
| Material & Condition | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Steel (Heavy Interrupted) | 110-220 m/min | 0.15-0.40 mm/rev | 0.5-3.5 mm |
| Rough Cast Steel Skin | 90-180 m/min | 0.18-0.35 mm/rev | 1.0-4.0 mm |
Compatible Tooling Systems:
Fits all standard Right-Hand (R) or Neutral (N) tool holders designed for 16-size inserts:
- Heavy Duty External Holders: MTJNR 2020K16 / MTJNR 2525M16 (ANSI 16-4D)
- Large Diameter Boring Bars: S32T-WTJNR16 / S40U-WTJNR16
Machinist Tip: Why Toughness (NC3030) Matters
When to upgrade from NC3020 to NC3030:
Maximum Shock Resistance. Ideal for old machines with play in the spindle, or when machining non-round bars. It stays intact where harder grades like NC3120 would shatter.
Best for Stability. Use NC3020 for clean, continuous turning at higher speeds. It is more wear-resistant than NC3030 but less durable against impact.
Pro Advice: If you are machining hexagonal or square bars, reduce your cutting speed (Vc) by 20% compared to round bars to allow the NC3030 grade to absorb the cyclic impacts effectively.
Packaging: 10 pieces per box.
TNMX 160408R for heavy interrupted cuts, Korloy NC3030 vs NC3020 for alloy steel, lathe inserts for hexagonal bar machining, impact resistant CNC steel inserts, best inserts for rough steel castings
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.