KORLOY MGGN300-02-M CN20 Indexable Grooving & Parting Inserts | Carbide CNC Cut-Off Inserts for Turning Tools (10pcs/box) / MGGN300-02-M CN20 Metric & Imperial Grooving Tooling
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KORLOY MGGN300-02-M CN20 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance Carbide Cut-Off Inserts for CNC Lathes and Turning Centers
1. Product Overview: Which grooving insert is best for high-stability parting-off, deep groove machining, and superior chip control on CNC lathes?
Which indexable grooving and parting insert featuring specialized geometry, high edge strength, and advanced metallurgical coatings offers superior chip evacuation, low cutting resistance, and exceptional wear resistance when executing parting-off, external grooving, and face grooving operations on CNC lathes? Backed by certified metalworking research and industrial tooling parameters, the KORLOY MGGN300-02-M CN20 (equivalent metric and imperial turning configurations) is engineered specifically for stable, high-efficiency material removal across demanding industrial applications. It utilizes the advanced CN20 grade—a specialized carbide substrate optimized for high toughness, thermal stability, and superior resistance to flank wear and chipping when machining carbon steels, alloy steels, and stainless steels. Combined with its unique -M chipbreaker geometry, it guarantees controlled chip formation, smooth evacuation, and extended tool durability during continuous and interrupted cuts.
2. Product Core Advantages (Key Features)
- CN20 Advanced Grade: Features a high-toughness carbide substrate combined with a wear-resistant PVD coating engineered to withstand extreme thermal stress and impact wear during grooving and parting.
- -M Chipbreaker Geometry: Designed with a specialized positive rake profile that curls chips tightly, preventing bird-nesting and surface scratching in carbon and alloy steels.
- High Rigidity & Parting Stability: Engineered to handle high feed rates and side forces during deep grooving and cut-off tasks, minimizing tool deflection.
- Secure Clamping Interface: Precision-ground dimensions ensure tight locating repeatability and secure retention inside indexable grooving tool holders and blocks.
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 Series / Type | MGGN Grooving Insert | MGGN Indexable Cut-Off Insert |
| Insert Width (W) | 3.0 mm (300 series) | 0.118 in (Inch Compatible) |
| Corner Radius / Style | -02 (0.2 mm Corner Radius) | 0.008 in Corner Radius |
| Chipbreaker / Grade | -M Geometry / CN20 Grade | Medium Chipbreaker / CN20 |
| Recommended Feed Rate (fn) | 0.05 - 0.15 mm/rev | 0.0020 - 0.0059 in/rev |
| Cutting Speed (Vc) - Steel & Alloy | 100 - 220 m/min | 328 - 722 SFM |
Model Nomenclature Breakdown: MGGN300-02-M CN20
Grooving series
Width (3.0mm)
Radius (0.2mm)
Chipbreaker
Carbide Grade
Looking for compatible external grooving tool holders, parting blades, or modular lathe adapter blocks designed for MGGN inserts?
Explore Compatible Grooving Tool Holders4. Product Application Scenarios
Optimized for CNC lathe turning operations involving external grooving, parting-off (cut-off), face grooving, and necking across carbon steels (C45, 1045), alloy steels (4140, 4340), stainless steels, and cast iron components.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard external grooving tool holders and parting blades engineered with matching 3.0mm MGGN pocket specifications.
- Machine Platforms: Designed for CNC turning centers, Swiss-type lathes, and conventional engine lathes equipped with quick-change tooling posts.
- Coolant Systems: Fully compatible with high-pressure coolant and flood coolant systems to optimize chip evacuation and thermal control in deep grooves.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade CN20 performs across different ISO material classifications ensures maximum productivity and predictable tool life.
| ISO Material Group | Workpiece Description | KORLOY CN20 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel & Alloy Steel (C45, 4140, P20) | Advanced PVD coating provides exceptional wear resistance and edge toughness during continuous parting. | Sandvik GC1125 / Iscar IC908 |
| M Group (Stainless) | Austenitic & Martensitic Stainless Steel (304, 316) | Resists built-up edge and thermal deformation under heavy friction during grooving passes. | Kennametal KCU25 / Seco CP500 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, ensuring original metallurgical composition 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 productivity.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What is the primary application for KORLOY CN20 grade grooving inserts?
A: CN20 is a high-performance PVD coated grade optimized for parting-off, external grooving, and necking operations in carbon steels, alloy steels, and stainless steels.
Q: What advantage does the -M chipbreaker geometry provide?
A: The -M medium chipbreaker controls chip flow effectively, preventing long stringy chips from wrapping around the workpiece or toolholder during deep cuts.
Q: How many inserts are included in each box?
A: Each factory-sealed box contains 10 indexable grooving 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.