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.
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