Korloy VNMG160408-HA H01 (ANSI VNMG 332-HA) Polished Insert for Aluminum & Non-Ferrous Metals (10pcs)
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The Original Korloy VNMG160408-HA H01 (ANSI Cross Reference: VNMG 332-HA) is a high-productivity 35° Rhombic Negative Insert specifically engineered for Non-Ferrous Materials. By utilizing an uncoated, ultra-fine grain carbide with a Mirror-Polished Rake Face, this insert minimizes friction and heat generation. The 0.8mm (1/32") Corner Radius provides superior edge strength, allowing for significantly higher feed rates and deeper cuts in Aluminum, Copper, and Brass without sacrificing the signature high-gloss finish of the H01 grade.
Superior Edge Integrity: The R0.8 radius design provides a robust cutting tip that excels in medium-duty turning and semi-finishing. Its increased contact area helps dissipate heat faster, extending tool life during high-volume aluminum production.
Technical Specifications (Metric & ANSI):
| ISO Designation | VNMG 160408-HA |
| ANSI Designation | VNMG 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) |
| Primary Materials | Aluminum, Copper, Brass, Bronze, Plastics (N) |
Core Performance Benefits:
- Enhanced Surface Quality: The mirror-polished rake face eliminates chip welding and built-up edge (BUE), resulting in a "smear-free" reflective finish on aluminum workpieces.
- High-Feed Capability: The R0.8 corner radius allows for faster cycle times by supporting higher feed rates (up to 0.30 mm/rev) while maintaining structural edge security.
- Optimized HA Chipbreaker: Features a sharp positive rake angle and a wide flute design to manage long, stringy aluminum chips efficiently.
- Versatile Application: While optimized for aluminum, it performs exceptionally well on other soft non-ferrous metals and engineering plastics like Nylon and PEEK.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Aluminum Alloys | 300 - 1000 m/min | 0.10 - 0.35 mm/rev | 0.5 - 4.0 mm |
| Brass / Bronze | 200 - 600 m/min | 0.10 - 0.25 mm/rev | 0.5 - 3.0 mm |
Compatible Tool Holders:
- External Turning: MVJNR / MVVNN / DVLNR Series (Size 16)
- Internal Boring Bars: S32U-MVQNR16 / S40V-MVUNR16 (Right-hand)
Pro Tip: Why R0.8 for Aluminum?
The 0.8mm radius allows for much higher feed rates than the 0.4mm version. In large aluminum components, this can reduce cycle times by up to 40% while still achieving an excellent Ra value.
When cutting at depth, the R0.8 radius creates a thicker chip that is easier for the HA breaker to curl and snap, preventing the dreaded "long ribbon" chips that can scratch your part.
Packaging: 10 pieces per box.
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