Korloy VNMG160404-HA H01 (ANSI VNMG 331-HA) Polished Insert for Aluminum & Non-Ferrous Metals (10pcs)
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The Original Korloy VNMG160404-HA H01 (ANSI Cross Reference: VNMG 331-HA) is a specialized 35° Rhombic Negative Insert designed for Aluminum and Non-Ferrous Metal Machining. Featuring the H01 Uncoated Grade, this insert undergoes a premium mirror-polishing process on the rake face to achieve an ultra-low friction coefficient. The HA Chipbreaker features an exceptionally sharp edge and wide gullet, making it the industry standard for preventing adhesion (sticking) and ensuring a high-gloss surface finish.
Mirror Finish Specialist: The H01 grade is not just sharp—it's ultra-smooth. By eliminating the coating, Korloy provides the sharpest possible cutting edge, essential for "slicing" through soft materials like Aluminum 6061, 7075, Copper, and various Plastics without burrs or smearing.
Technical Specifications (Metric & ANSI):
| ISO Designation | VNMG 160404-HA |
| ANSI Designation | VNMG 331-HA |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.4 mm / (1/64") |
| Grade | H01 (Mirror Polished Uncoated) |
| Primary Materials | Aluminum, Copper, Brass, Plastics (N) |
Core Performance Benefits:
- Ultra-Sharp Cutting Edge: The HA geometry is ground to a razor-sharp finish, reducing cutting forces and preventing workpiece deformation on thin-walled parts.
- Anti-Adhesion Mirror Surface: The polished rake face allows chips to slide off effortlessly, effectively eliminating Built-Up Edge (BUE) even at high cutting speeds.
- Precision Profiling: The 35° VNMG shape is perfect for intricate contours, undercuts, and profiles where access is restricted.
- Versatile H01 Grade: Outstanding performance in a wide range of non-ferrous materials, providing high wear resistance despite being uncoated.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Aluminum Alloys | 200 - 800 m/min | 0.05 - 0.25 mm/rev | 0.1 - 3.0 mm |
| Copper / Brass | 150 - 500 m/min | 0.05 - 0.20 mm/rev | 0.1 - 2.5 mm |
| Plastics (Delrin/PVC) | 200 - 600 m/min | 0.10 - 0.30 mm/rev | 0.2 - 4.0 mm |
Compatible Tool Holders:
Fits standard 35° negative tool holders, including:
- External Turning: MVJNR / MVVNN / DVLNR Series (Size 16)
- Boring Bars: S32U-MVQNR16 / S40V-MVUNR16
Machinist Tip: High-Speed Aluminum Turning
Aluminum loves to melt onto the tool tip. Use high cutting speeds (Vc) and high-pressure coolant to "flush" the chips away. The H01 mirror finish is designed for this high-speed flow.
For the best surface finish, ensure your feed rate (fn) is appropriate for the 0.4mm radius. A smaller feed combined with H01's sharp edge will yield a near-optical 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.