KORLOY MGMN300-G NC3030 Indexable Grooving & Parting Inserts | CVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMN300-G NC3030 0.118 inch Metric Grooving Tooling
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KORLOY MGMN300-G NC3030 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance CVD Coated Double-Ended Carbide Inserts Featuring G-Type Chipbreaker for CNC Lathe Steel & Alloy Grooving & Parting
1. Product Overview: Which insert is best for high-efficiency steel and alloy grooving and parting-off?
Which indexable double-ended grooving insert offers exceptional wear resistance, thermal stability, and smooth chip evacuation when executing parting-off or 3.0mm wide grooving on CNC turning centers machining carbon steels, alloy steels, and structural steels? Backed by industrial metalworking standards and empirical tooling data, the KORLOY MGMN300-G NC3030 (equivalent metric 3.0mm / imperial 0.118 inch width) is engineered specifically for precision grooving and parting tasks that require high flank wear resistance, dual-edge cost efficiency, and robust structural stability. It incorporates the advanced NC3030 grade—a specialized CVD multi-layer coated carbide substrate optimized for excellent thermal resistance and continuous-to-interrupted steel turning behavior. Combined with its precision G-type chipbreaker geometry (-G), it effectively controls chip formation and minimizes cutting forces during radial feeds.
2. Product Core Advantages (Key Features)
- NC3030 Advanced CVD Grade: Features a high-strength tungsten carbide substrate combined with an advanced CVD coating designed for superior thermal barrier properties and high wear resistance in steel machining.
- G-Type Chipbreaker Geometry (-G): Engineered with a sharp, positive rake groove form that promotes stable chip curling and low cutting resistance across fine-to-medium feed rates during steel grooving.
- Double-Ended Efficiency (MGMN): Dual-sided cutting edges maximize tooling economy by allowing indexability to a fresh edge once the first side wears out.
- Rigid Central Clamping Interface: Provides high clamping stability and precise seating to eliminate micro-vibrations and chatter during 3.0mm parting and grooving passes.
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 Double-Ended Grooving | MGMN Double-Ended Grooving |
| Cutting Width (W) | 3.0 mm | 0.118 inch |
| Chipbreaker Style | -G (Sharp / Finishing) | -G (Sharp / Finishing) |
| 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) - Steel & Alloys | 130 - 260 m/min | 425 - 850 SFM |
Model Nomenclature Breakdown: MGMN300-G NC3030
Double-ended grooving
3.0mm cutting width
Sharp chipbreaker
CVD Coated Grade
Looking for precision 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, face profiling, bar stock cutoff, and turning across carbon steels, alloy steels, and general engineering metals.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits heavy-duty MGMN-compatible external grooving tool blocks and modular blades matching 3.0mm pocket widths.
- Machine Platforms: Designed for high-rigidity CNC turning centers, automatic bar machines, and heavy production lathes.
- Coolant Systems: Fully compatible with standard flood coolant systems to control thermal gradients and evacuate chips efficiently.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3030 performs across different ISO material classifications ensures maximum machining efficiency.
| ISO Material Group | Workpiece Description | KORLOY NC3030 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel, Alloy Steel (C45, 42CrMo) | High toughness and thermal crack resistance for general steel grooving and interrupted turning. | Sandvik GC4225 / Kennametal KCP10 |
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316) | Provides stable performance in moderate stainless steel applications under controlled cutting conditions. | Iscar IC807 / Seco TP2500 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, guaranteeing 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: Why choose the NC3030 CVD grade for steel and alloy grooving applications?
A: The specialized multi-layer CVD coating offers balanced toughness and excellent wear resistance, making it ideal for stable steel turning and parting operations.
Q: How does the -G chipbreaker enhance performance on the 3.0mm insert?
A: The -G chipbreaker geometry provides a sharp, positive rake angle that ensures clean shearing and reliable chip control at fine-to-medium feed rates.
Q: How many pieces are included in each 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
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.