Korloy TNMG160408-HA H01 (TNMG 332-HA) Polished Aluminum Turning Insert (10pcs)
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The Original Korloy TNMG160408-HA H01 (ANSI: TNMG 332-HA) is a high-performance, double-sided Triangular Turning Insert specifically engineered for high-efficiency machining of Aluminum Alloys, Copper, Brass, and Plastics. The H01 Uncoated Grade utilizes an ultra-sharp micro-grain substrate, while the HA Chipbreaker features a Mirror-Polished (Buffed) surface. This 0.8mm radius version provides the edge strength needed for high-feed applications and heavy material removal in non-ferrous metals.
Engineered for Productivity: The R0.8 (1/32") corner radius allows for significantly higher feed rates and deeper cuts compared to the 0.4mm version. Combined with the buffed rake face, it ensures rapid chip evacuation without any risk of built-up edge (BUE) or material welding.
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 | H01 (Mirror Polished Uncoated Carbide) |
Core Performance Benefits:
- Enhanced Edge Security: The R0.8 radius is ideal for roughing and interrupted cuts in non-ferrous workpieces.
- Mirror-Polished HA Geometry: Reduces friction to almost zero, ensuring a high-gloss surface finish and preventing chip clogging.
- Double-Sided Value: Features 6 precision-ground cutting edges for the most cost-effective aluminum turning.
- Broad Material Range: Performs exceptionally well on 6061, 7075 aluminum, pure copper, brass, and even high-density plastics like Delrin.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Aluminum Alloys (Low Si) | 400-1000 m/min (1310-3280 sfm) | 0.15-0.45 mm/rev (.006-.018 ipr) | 0.5-5.0 mm (.020-.197") |
| Copper / Brass | 200-500 m/min (655-1640 sfm) | 0.12-0.35 mm/rev (.005-.014 ipr) | 0.5-4.0 mm (.020-.157") |
| High Silicon Aluminum | 150-300 m/min (490-985 sfm) | 0.10-0.30 mm/rev (.004-.012 ipr) | 0.5-3.0 mm (.020-.118") |
Compatible Tooling Systems:
- External Lathe Holders: MTJNR 2020K16 / MTJNR 2525M16 (ANSI 12-4B / 16-4D)
- Internal Boring Bars: S25S-WTJNR16 / S32T-WTJNR16 / S40U-WTJNR16
Machinist Tip: The "Speed is King" Rule
Optimizing TNMG160408 for aluminum production:
Roughing & High Feed. This is your go-to insert for clearing material quickly. The 0.8mm radius allows you to increase the feed rate (fn), which helps break the chip even in soft aluminum alloys.
Precision Finishing. Use the 0.4mm radius version only for the final pass if you need to reach tight corners or if you are machining small-diameter parts prone to vibration.
Pro Advice: For the best results in 6000 or 7000 series aluminum, run the spindle as fast as your machine allows. High surface footage (Vc) combined with the H01 polished surface creates a "cold cut" effect, resulting in a mirror-like part finish.
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.