Korloy RCGT0803MO-AK H01 8mm Round Polished Insert for Aluminum & Copper (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy RCGT0803MO-AK H01 is a premium 8.0mm Round (RCGT) Insert designed for high-efficiency machining of Aluminum Alloys, Copper, and Non-Ferrous Metals. Utilizing the H01 Uncoated Grade, the insert surface is mirror-polished to minimize friction and prevent material buildup. The -AK chipbreaker features a high rake angle and an ultra-sharp edge, allowing for smooth shearing of soft metals and ensuring a high-gloss surface finish.
The Mirror Finish Specialist: In aluminum machining, "Built-up Edge" (BUE) is the main enemy of surface quality. The H01 grade’s polished treatment allows chips to slide off effortlessly, enabling high-speed cutting without smearing or vibrating on the workpiece surface.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | RCGT0803MO-AK |
| Insert Shape | Round (RC) |
| Diameter | 8.0 mm |
| Grade | H01 (Uncoated Mirror-Polished Carbide) |
Core Performance Benefits:
- Enhanced Edge Life: The 8.0mm round profile allows the insert to be rotated multiple times, providing more usable cutting edges compared to triangular or rhombic inserts.
- Aggressive -AK Geometry: Expertly curls stringy aluminum chips to prevent them from scratching the finished surface.
- Unmatched Sharpness: The ground and polished edge shears material with minimal force, ideal for thin-walled parts.
- Versatile Non-Ferrous Application: Excellent results on 6061, 7075 aluminum, pure copper, bronze, and plastics like POM or Acrylic.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Aluminum Alloys (Wrought) | 250 - 750 m/min | 0.10 - 0.25 mm/rev |
| Pure Copper / Brass | 150 - 450 m/min | 0.08 - 0.20 mm/rev |
| Non-Metallic (Plastic/Wood) | 200 - 550 m/min | 0.15 - 0.35 mm/rev |
Compatible Tool Holders:
Precision 8.0mm pocket fit for high-stability turning operations:
- External Holders: SRGCR 1616H08 / 2020K08 / 2525M08
Machinist Tip: Why Round (RCGT) for Aluminum?
Round inserts offer unique advantages over traditional shapes like CCGT or VCGT:
The 8mm round edge of the RCGT0803 provides a larger contact radius, which naturally produces a much smoother surface finish at higher feed rates compared to standard nose radii.
Always choose H01 for 6000 and 7000 series aluminum. The absence of coating maintains a razor-sharp edge. If machining high-silicon cast aluminum (Si >12%), then consider a PCD or DLC coated insert.
Pro Advice: When profiling with RCGT0803MO-AK, use the maximum coolant pressure available to clear chips from the cavity. The round shape is excellent for multi-directional turning and copy-machining complex curves.
Packaging: 10 pieces per box.
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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.