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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