KORLOY MGMN300-02-L PC9030 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for Stainless Steel & Steel CNC Lathes (10pcs/box) / MGMN300-02-L PC9030 0.118 inch Metric Grooving Tooling
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KORLOY MGMN300-02-L PC9030 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Left-Hand Carbide Inserts with 3.0mm Width & 0.2mm Radius for CNC Lathe Stainless Steel & Steel Turning
1. Product Overview: Which insert is best for precise fine-radius profiling, shallow grooving, and parting in stainless steel and alloy steels?
Which indexable grooving insert featuring a 3.0mm cutting width, a tight 0.2mm left-hand corner radius (-L), and specialized geometry provides exceptional edge toughness, thermal shock resistance, and minimal burr formation when executing narrow grooving, precise corner profiling, or parting-off on CNC turning centers machining stainless steels, heat-resistant alloys, and carbon steels? Supported by certified metalworking research and industrial tooling parameters, the KORLOY MGMN300-02-L PC9030 (equivalent metric 3.0mm width with 0.2mm left-hand radius / imperial 0.118 inch width) is engineered specifically for operations requiring sharp corner transitions and superior resistance to built-up edge (BUE). It utilizes the advanced PC9030 grade—a multi-layer PVD coated fine-grained carbide substrate optimized for interrupted cuts and stainless steel turning. With its specialized left-hand configuration, it guarantees clean wall finishes and smooth chip evacuation away from machined surfaces.
2. Product Core Advantages (Key Features)
- PC9030 Advanced PVD Grade: Features a tough micro-grain carbide substrate paired with a high-adhesion PVD TiAlN coating that minimizes friction, reduces built-up edge, and excels in stainless steel and low-carbon steel machining.
- 3.0mm Width & 0.2mm Left-Hand (-L) Profile: Designed with a precise 3.0mm cutting width and a sharp 0.2mm left-hand corner radius that delivers crisp corner profiling and clean parting-off.
- Dual-Edge Cost Efficiency: Features two symmetrical cutting edges that allow quick indexing to a fresh edge, lowering per-part tooling costs.
- Secure Pocket Clamping: Engineered to fit securely into standard neutral and left-hand external grooving blocks, eliminating micro-motion and chatter during heavy feed rates.
3. Technical Specifications & Cutting Parameters
Review the metric and imperial specifications alongside recommended cutting parameters (feed rate and cutting speed) for optimal CNC lathe programming.
| Specification Parameter | Metric (ISO) | Imperial Equivalent |
|---|---|---|
| Insert Type / Series | MGMN Left-Hand Grooving | MGMN Left-Hand Grooving |
| Cutting Width (W) | 3.0 mm | 0.118 inch |
| Corner Radius & Hand (RE / Direction) | 0.2 mm (Left-Hand) | 0.0079 inch (Left-Hand) |
| Recommended Feed (f) - Grooving | 0.04 - 0.12 mm/rev | 0.0016 - 0.0047 in/rev |
| Recommended Feed (f) - Parting | 0.03 - 0.08 mm/rev | 0.0012 - 0.0031 in/rev |
| Cutting Speed (Vc) - Stainless & Alloy Steels | 90 - 180 m/min | 295 - 590 SFM |
Model Nomenclature Breakdown: MGMN300-02-L PC9030
Double-ended grooving
3.0mm cutting width
0.2mm radius, Left-hand
PVD Coated Grade
Looking for rigid external grooving toolholders or modular blocks designed for secure MGMN 300 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for high-precision CNC turning operations involving external grooving, sharp corner shoulder profiling, shallow face grooving, and clean bar stock cutoff across austenitic stainless steels, alloy steels, and heat-resistant super alloys.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard MGMN-compatible external grooving tool blocks and modular blades matching 3.0mm pocket widths.
- Machine Platforms: Designed for high-precision CNC lathes, Swiss-type automatic turning machines, and multi-axis turning centers.
- Coolant Systems: Highly compatible with high-pressure coolant delivery to suppress thermal deformation in stainless steel machining.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade PC9030 performs across different ISO material classifications ensures maximum tool durability.
| ISO Material Group | Workpiece Description | KORLOY PC9030 Performance | Equivalent Industry Grades |
|---|---|---|---|
| M Group (Stainless Steel) | Austenitic & Martensitic Stainless (304, 316L) | PVD TiAlN coating prevents edge chipping and built-in-edge formation during sticky stainless steel turning. | Sandvik GC2135 / Kennametal KCU25 |
| P Group (Steel) | Low Carbon Steel, Alloy Steel (1045, 4140) | Tough substrate handles intermittent cutting forces and general steel profiling with consistent wear patterns. | Iscar IC908 / Seco MP900 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, ensuring original metallurgical properties and consistent batch performance.
Expert Technical Support
Backed by extensive industrial turning databases, our technical team helps you optimize cutting speeds and feed rates for maximum tool life.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What is the advantage of the 0.2mm corner radius with left-hand orientation?
A: The 0.2mm tight radius allows for sharper corner profiling and minimal corner rounding, while the left-hand design ensures proper chip steering away from finished shoulders.
Q: Why is PC9030 ideal for stainless steel grooving?
A: PC9030 combines a fracture-resistant micro-substrate with a slick PVD coating that prevents material adhesion and thermal cracking common in stainless steel turning.
Q: How many inserts are supplied in a single box?
A: Each factory-sealed box contains 10 indexable inserts.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.