Korloy MGMN200-M PC215K 2mm Double-Ended Cast Iron Grooving Insert (10pcs)
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The Original Korloy MGMN200-M PC215K is a precision 2.0mm Double-Ended Grooving Insert specifically engineered for High-Performance Cast Iron Machining. Utilizing the advanced PC215K PVD grade, this insert provides the ultimate solution for processing Gray Cast Iron (GG) and Ductile Iron (GGG) where precision and edge toughness are paramount. Its fine-grained carbide substrate and specialized coating prevent micro-chipping, ensuring consistent dimensions in high-speed CNC environments.
Precision for Iron Castings: At 2.0mm width, the MGMN200-M reduces material waste while the PC215K grade tackles the abrasive nature of iron. It is particularly effective for small to medium-sized cast components requiring high surface quality.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN200-M |
| Insert Width (w) | 2.0 mm |
| Grade | PC215K (Fine-Grain Cast Iron Specialist - PVD) |
| Chipbreaker | -M (Universal Geometry for Stability) |
Core Performance Benefits:
- Edge Chipping Resistance: Specialized PVD coating prevents the "peeling" effect common in cast iron machining.
- Narrow Kerf Advantage: 2.0mm width minimizes tool pressure and saves expensive raw material during parting.
- Thermal Shock Stability: Excellent performance in both dry and wet machining of iron alloys.
- High Surface Finish: The -M geometry and sharp edge of the PC215K grade provide superior finishes on brittle materials.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Gray Cast Iron (HT250/GG25) | 120 - 220 m/min | 0.05 - 0.15 mm/rev |
| Ductile Iron (QT450/GGG40) | 100 - 180 m/min | 0.05 - 0.12 mm/rev |
| Malleable Iron | 90 - 160 m/min | 0.06 - 0.14 mm/rev |
Compatible Tool Holders:
To ensure precision in 2.0mm grooving, pair with these MGEHR/L holders:
- External Holders: MGEHR 1212-2 / 1616-2 / 2020-2 / 2525-2
Cast Iron Grade Choice: PC215K vs. NC6210
Korloy offers two main paths for Cast Iron (K-Group) machining:
The Precision Specialist. A PVD grade that is sharper and tougher. Ideal for 2.0mm - 3.0mm width grooving where edge stability and high-quality finish are required.
The High-Speed Giant. A CVD grade with ultra-thick coating. Better for heavy-duty roughing and 5.0mm+ widths where maximum wear resistance at high speeds is needed.
Machinist's Pro Tip: For MGMN200-M PC215K, avoid excessive vibration. Because cast iron produces dusty, short chips, ensure your tool path allows for consistent contact. If the iron is "chilled" (extra hard surface), reduce the entry speed slightly to preserve the PVD coating.
Packaging: 10 pieces per box.
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