Korloy VCGT160404-AK H01 (ANSI VCGT 331-AK) Polished Aluminum Insert (10pcs)
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The Original Korloy VCGT160404-AK H01 (ANSI Cross Reference: VCGT 331-AK) is a high-performance 7° Relief Polished Carbide Insert designed for High-Efficiency Mirror Finishing. Utilizing the robust 16-size (3/8" IC) substrate, this insert offers maximum stability during profiling of large-diameter non-ferrous components. The 0.4mm (0.016") corner radius provides the perfect balance of edge durability and surface brilliance on Aluminum, Copper, Brass, and Plastics.
Industry Standard for Gloss: The H01 grade features an ultra-polished rake face that reduces friction to a minimum. This effectively prevents the "welding" of soft materials (Built-Up Edge) to the tip, ensuring your workpieces maintain a consistent, high-gloss aesthetic from the first part to the last.
Technical Specifications (Metric & ANSI):
| ISO Designation | VCGT 160404-AK |
| ANSI Designation | VCGT 331-AK |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.4 mm / (0.016") |
| Relief Angle | 7° (C-Type) |
| Grade | H01 (Micro-Polished Uncoated Carbide) |
Core Performance Benefits:
- Robust 1604 Substrate: 50% thicker than the 11-size, allowing for more aggressive depths of cut and better vibration dampening.
- Enhanced Edge Security: The 0.4mm radius is less prone to micro-chipping, making it ideal for semi-finishing and high-speed profiling.
- 7° Universal Clearance: Perfectly matched for SVJCR and SVUCR holders, ensuring a clean cut without heel drag on standard lathe turrets.
- AK "Aluminum Knight" Geometry: High rake angles and sharp ground edges ensure burr-free results even on gummy alloys.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Aluminum Alloys (6061/7075) | 350-1200 m/min | 0.08-0.25 mm/rev | 0.1-3.5 mm |
| Copper / Brass | 200-700 m/min | 0.05-0.20 mm/rev | 0.1-2.5 mm |
| Engineering Plastics | 150-600 m/min | 0.10-0.30 mm/rev | 0.2-4.0 mm |
Compatible Tooling Systems (7° Relief):
Precision-matched for VCGT 1604 (ANSI 33) tool holders:
- External Profile Turning: SVJCR 2020K16 / SVJCR 2525M16
- Internal Boring Bars: S25S-SVUCR16 / S32T-SVUCR16
Machinist Tip: Balanced Performance
Optimizing the VCGT 331-AK:
VCGT160404 is the most popular 16-size 35° insert because it can both light-rough and fine-finish. This eliminates a tool change for many aluminum jobs.
Because of the R0.4 radius and the 1604 thickness, you can push the feed rate (fn) up to 0.25mm/rev. The AK chipbreaker will maintain control, keeping your chips small and manageable.
Pro Advice: Always use flood coolant on 6061-T6 to achieve a mirror finish. If you see smoke, your SFM (Cutting Speed) is too high or your coolant flow is insufficient.
Packaging: 10 pieces per box.
VCGT 331-AK Korloy H01, VCGT 160404 for aluminum, high feed aluminum inserts, mirror finish carbide tips for brass, SVJCR 2525M16 compatible inserts, polished 35 degree lathe inserts
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.