Korloy RCGT1204MO-AK H01 12mm Heavy-Duty Round Polished Insert for Aluminum (10pcs)
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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.
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