Korloy VBGT110304-AK H01 (ANSI VBGT 221-AK) Polished Aluminum Insert (10pcs)
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The Original Korloy VBGT110304-AK H01 (ANSI Cross Reference: VBGT 221-AK) is a premium Polished Uncoated Carbide Insert designed for High-Efficiency Finishing of non-ferrous materials. Featuring the world-class H01 Grade, this 35° diamond insert is micro-polished to eliminate surface friction. The 0.4mm (0.016") corner radius provides a perfect balance of edge strength and surface quality, making it the most popular choice for Aluminum, Brass, Copper, and Acrylics on both Swiss-type and standard CNC lathes.
Superior Chip Control: The AK "Aluminum Knight" chipbreaker features a high rake angle and a wide flute design. This allows for rapid chip evacuation even at high feed rates, preventing the hot chips from scratching the workpiece surface and ensuring a consistent mirror-like finish.
Technical Specifications (Metric & ANSI):
| ISO Designation | VBGT 110304-AK |
| ANSI Designation | VBGT 221-AK |
| Inscribed Circle (IC) | 6.35 mm / (1/4") |
| Thickness (S) | 3.18 mm / (1/8") |
| Corner Radius (r) | 0.4 mm / (0.016") |
| Relief Angle | 5° (B-Type) |
| Grade | H01 (Micro-Polished Uncoated Carbide) |
Core Performance Benefits:
- Enhanced Edge Durability: The 0.4mm radius is less prone to micro-chipping than 0.2mm, allowing for more stable tool life in high-volume production.
- Mirror-Like Ra Values: Polished rake face prevents "Built-Up Edge" (BUE) ensuring a bright, high-gloss aesthetic on non-ferrous parts.
- Low Cutting Force: Razor-sharp edge reduces pressure on the workpiece, perfect for small diameters and thin-walled aluminum tubes.
- 35° Profiling Precision: Excellent accessibility for complex contours, undercuts, and fine tracing applications.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Aluminum Alloys (Wrought) | 250-900 m/min | 0.08-0.25 mm/rev | 0.1-3.0 mm |
| Brass / Copper | 150-500 m/min | 0.05-0.20 mm/rev | 0.1-2.0 mm |
| Plastics (Delrin/PVC) | 100-450 m/min | 0.10-0.30 mm/rev | 0.2-4.0 mm |
Compatible Tool Holders:
Optimized for 35° VBGT 1103 (ANSI 22) positive tool systems (5° Relief Angle):
- External Turning & Profiling: SVJBR 1212H11 / SVJBR 1616H11 / SVJBR 2020K11
- Internal Boring & Tracing: S16Q-SVUBR11 / S20R-SVUBR11 / S25S-SVUBR11
Machinist Tip: 02 vs 04 Corner Radius
Which VBGT-AK should you choose for Aluminum?
The All-Rounder. Best for general finishing and semi-finishing. It is much stronger and allows for 50-80% higher feed rates while maintaining an excellent finish. Use this for 90% of aluminum jobs.
The Precision Specialist. Only use the 0.2mm version when you have very sharp internal corner requirements or when machining extremely thin-walled parts that are prone to deflection.
Pro Advice: When machining Copper or 6000-series Aluminum, ensure your coolant is pointed directly at the tool tip. H01 grade is extremely sharp, but heat is the enemy of the mirror finish.
Packaging: 10 pieces per box.
VBGT 221-AK Korloy H01, VBGT 110304 aluminum insert, best inserts for 6061 aluminum finishing, polished carbide inserts for copper turning, SVJBR tool holder inserts, high speed aluminum turning tips
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.