Korloy MGMN300-02-L PC9030 3mm R0.2 Stainless Steel Profiling Insert (10pcs)
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The Original Korloy MGMN300-02-L PC9030 is a premium 3.0mm Double-Ended Profiling Insert specifically engineered for Stainless Steel (M) and Heat-Resistant Alloys (S). Featuring a sharp 0.2mm corner radius (R0.2) and the -L optimized profiling geometry, this insert excels in achieving "mirror-like" surface finishes on gummy materials. The PC9030 PVD grade is world-renowned for its ability to combat heat buildup and prevent chip welding, making it the industry standard for precision stainless machining.
The Stainless Steel Specialist: While universal grades often struggle with the work-hardening of stainless steel, the PC9030's sub-micron substrate and high-aluminum PVD coating are designed to stay sharp and cool. The -L geometry ensures that side-turning and profiling passes remain vibration-free.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-02-L |
| Insert Width / Radius | 3.0 mm / R0.2 |
| Grade | PC9030 (Premium Stainless PVD) |
| Chipbreaker | -L (Profiling / Lead Finishing) |
Core Performance Benefits:
- Anti-Adhesion Coating: Specialized PVD surface prevents material from welding to the edge, crucial for 304/316 stainless.
- Precision R0.2 Edge: Allows for intricate detail work and sharp corner definition in 3.0mm grooves.
- Superior Thermal Resistance: Maintains hardness at high temperatures, enabling stable performance in tough-to-cut alloys.
- Optimized Lead Geometry: The -L design creates a clean shearing action, reducing cutting forces and chatter during lateral profiling.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.03 - 0.10 mm/rev |
| Duplex Stainless Steel | 50 - 90 m/min | 0.03 - 0.08 mm/rev |
| Titanium Alloys (Inconel) | 30 - 60 m/min | 0.02 - 0.07 mm/rev |
Compatible Tool Holders:
Precision 3.0mm seat fit for external and internal systems:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3
- Internal Holders: MGIVR 2016-3 / 2520-3
Grade Choice: PC9030 vs. PC5300
Both are PVD grades, but their specializations differ significantly for 3.0mm profiling:
The Stainless Expert. Optimized specifically for M (Stainless) and S (Super Alloys). It features a smoother coating to prevent built-up edge and a tougher substrate to resist thermal cracking during wet cutting.
The Universalist. Best for general steel (P) and mixed material production. While it can cut stainless, it won't match the tool life of PC9030 in dedicated stainless runs.
Machinist's Pro Tip: For MGMN300-02-L PC9030, high-pressure coolant is your best friend. Aim the nozzle directly at the cutting edge to flush out chips during profiling; this prevents the "re-cutting" of chips that often damages the R0.2 radius.
Packaging: 10 pieces per box.
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