Korloy RCGT1204MO-AK H01 12mm Heavy-Duty Round Polished Insert for Aluminum (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy RCGT1204MO-AK H01 is a heavy-duty 12.0mm Round (RCGT) Insert, precision-designed for the most demanding Aluminum, Copper, and Non-Ferrous machining tasks. As the largest standard size in the RCGT lineup, it offers unmatched edge strength and thermal stability. The H01 Grade provides an un-coated, mirror-polished surface that eliminates material adhesion, while the -AK chipbreaker ensures aggressive yet controlled chip evacuation in high-volume production environments.
Maximum Material Removal: The 12.0mm diameter allows for significantly deeper cuts and higher feed rates than smaller round inserts. This makes the RCGT1204 ideal for roughing large aluminum castings or achieving expansive, smooth surfaces on oversized non-ferrous workpieces.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | RCGT1204MO-AK |
| Insert Shape | Round (RC) |
| Diameter / Thickness | 12.0 mm / 4.76 mm |
| Grade | H01 (Uncoated Mirror-Polished Carbide) |
Core Performance Benefits:
- Exceptional Heat Dissipation: The large carbide mass of the 12mm body absorbs and dissipates heat effectively during prolonged high-speed runs.
- Superior Rake Geometry: The AK chipbreaker’s sharp, positive angle shears through gummy materials like 3000-series aluminum without "smearing."
- Ultimate Surface Integrity: Mirror polishing prevents Built-Up Edge (BUE), maintaining a "like-new" cutting edge for extended periods.
- 360-Degree Utilization: The round design allows for maximum economy; simply rotate the insert to a fresh section when one area shows wear.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Aluminum (6000/7000 Series) | 400 - 1000 m/min | 0.15 - 0.45 mm/rev |
| Copper / Brass / Bronze | 250 - 600 m/min | 0.12 - 0.35 mm/rev |
| Plastics (PEEK / Nylon) | 300 - 800 m/min | 0.20 - 0.50 mm/rev |
Compatible Tool Holders:
Precision 12.0mm pocket for maximum stability in heavy turning:
- External Holders: SRGCR 2525M12 / 3232P12
Machinist Tip: Scaling to the 12mm RCGT
When choosing the RCGT1204 over smaller versions, keep these factors in mind:
The 12mm insert creates significant tool pressure due to the large contact area. Always use a rigid shank (at least 25mm or 1 inch) to avoid chatter marks on the finish.
While H01 is the standard for non-ferrous metals, the RCGT1204 in H01 is also a "secret weapon" for machining Wood and Composite Panels where a razor-sharp, non-stick edge is required.
Pro Advice: For RCGT1204MO-AK, use flood coolant. With a 12mm radius, the chip load is distributed over a wider area; cooling the entire engagement zone will help maintain the mirror finish across large surface areas.
Packaging: 10 pieces per box.
Korloy RCGT1204MO-AK price, 12mm large round insert for aluminum, mirror finish lathe insert for large diameter copper, RCGT1204 cutting speed for aluminum 6061, heavy duty non-ferrous profiling insert
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.