Korloy TNMG160408-HA PC9030 (TNMG 332-HA) Sharp & Tough Stainless Steel Insert (10pcs)
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The Original Korloy TNMG160408-HA PC9030 (ANSI: TNMG 332-HA) represents the perfect synergy between Extreme Sharpness and Coated Durability. Designed for Gummy Stainless Steels (304L, 316L), Titanium, and Nickel-Based Superalloys, this insert uses the ultra-positive HA Geometry to shear through material instead of "plowing" it. The PC9030 PVD Coating ensures the edge stays protected against high thermal loads, while the 0.8mm radius provides the strength needed for semi-roughing and medium turning.
Solve the "Gummy" Material Challenge: The HA chipbreaker's sharp, high-rake design is a game-changer for materials that tend to stick to the tool. It significantly reduces cutting heat and friction, eliminating built-up edge and leaving a superior surface finish even on large, difficult-to-machine components.
Technical Specifications (Metric & Imperial):
| ISO Designation | TNMG 160408-HA |
| ANSI Designation | TNMG 332-HA |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.8 mm / (1/32") |
| Grade | PC9030 (Premium PVD for Stainless/HRSA) |
Core Performance Benefits:
- Reduced Cutting Pressure: The sharp HA edge bites into the workpiece easily, making it ideal for low-rigidity setups or thin-walled parts.
- Thermal Protection: PC9030 PVD coating acts as a heat shield, preventing the cutting edge from softening during long cuts in heat-resistant alloys.
- Enhanced Edge Life: The 0.8mm radius (332) offers more "meat" at the tip than the 0.4mm version, allowing for higher feed rates and better resistance to chipping.
- 6-Edge Economy: Double-sided triangular design provides maximum productivity for your tooling investment.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Gummy Stainless (304/316L) | 90-190 m/min (295-625 sfm) | 0.15-0.35 mm/rev (.006-.014 ipr) | 0.5-3.5 mm (.020-.138") |
| Titanium Alloys (Gr 5) | 40-85 m/min (130-280 sfm) | 0.12-0.25 mm/rev (.005-.010 ipr) | 0.4-2.5 mm (.016-.100") |
| Inconel / Monel | 20-55 m/min (65-180 sfm) | 0.10-0.20 mm/rev (.004-.008 ipr) | 0.3-2.0 mm (.012-.079") |
Compatible Tooling Systems:
Pairs perfectly with standard 16-size (4-size ANSI) negative holders:
- External Lathe Holders: MTJNR 2020K16 / MTJNR 2525M16 (ANSI 12-4B / 16-4D)
- Internal Boring Bars: S25S-WTJNR16 / S32T-WTJNR16
Machinist Tip: The "Anti-Vibration" Advantage
When to deploy the 0.8mm HA-PC9030:
Best for Roughing & Medium Cuts. If your workpiece is large or has a rough surface, the 0.8mm radius is essential. It provides the toughness to handle inconsistent depths of cut while the HA geometry ensures you aren't fighting excess cutting pressure.
Use NC3120 for carbon steel and alloys. Stick to PC9030 for anything in the M (Stainless) or S (Heat Resistant) family. PC9030's PVD coating is much thinner and sharper, which is the only way to effectively cut materials that work-harden easily.
Pro Advice: When machining Inconel or Titanium, heat is your enemy. Keep your cutting speed (Vc) on the lower end of the range but keep your feed (fn) positive. Letting the tool dwell or rub will cause immediate edge failure and part hardening.
Packaging: 10 pieces per box.
TNMG 160408-HA for 316 stainless steel, Korloy PC9030 vs PC5300 tool life, best insert for titanium turning, TNMG 332-HA cutting speeds for Inconel, sharpest carbide inserts for stainless steel shafts
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.