KORLOY MGMN200-M NC3120 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for Steel & Stainless Steel CNC Lathes (10pcs/box) / MGMN200-M NC3120 0.079 inch Metric Grooving Tooling
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KORLOY MGMN200-M NC3120 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Carbide Inserts with 2.0mm Width & -M Medium Chipbreaker Geometry for CNC Lathe Steel & Stainless Steel Turning
1. Product Overview: Which insert is best for reliable chip control, high thermal shock resistance, and extended tool life in steel and stainless steel machining?
Which indexable grooving insert featuring a 2.0mm cutting width, an optimized -M medium chipbreaker geometry, and advanced PVD metallurgical coatings offers exceptional wear resistance, minimal thermal cracking, and smooth chip evacuation when executing precision grooving or parting-off on CNC turning centers machining carbon steels, alloy steels, and austenitic stainless steels? Backed by certified metalworking research and industrial tooling parameters, the KORLOY MGMN200-M NC3120 (equivalent metric 2.0mm width with -M chipbreaker / imperial 0.079 inch width) is engineered specifically for stable, high-efficiency material removal across varying cutting conditions. It utilizes the advanced NC3120 grade—a specialized PVD coated carbide substrate optimized for high toughness, thermal stability, and superior resistance to plastic deformation and built-up edge. Combined with its designated -M geometry, it guarantees balanced cutting action, reliable chip breaking, and extended tool longevity.
2. Product Core Advantages (Key Features)
- NC3120 Advanced PVD Grade: Features a high-toughness carbide substrate combined with a multi-layer PVD coating engineered to withstand thermal cycling, flank wear, and mechanical shock during continuous and interrupted steel turning.
- -M Medium Chipbreaker Geometry: Designed with a positive rake angle and versatile groove contours that provide stable chip formation across medium feed rates, preventing stringy chips and work hardening.
- 2.0mm Cutting Width & Dual-Edge Economy: Provides a precise 2.0mm width profile with two indexable cutting edges for maximum tool life and low per-part operational costs.
- Secure Pocket Clamping: Engineered to fit securely into standard external grooving tool blocks, eliminating micro-motion and chatter during high-precision 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 Grooving & Parting | MGMN Grooving & Parting |
| Cutting Width (W) | 2.0 mm | 0.079 inch |
| Chipbreaker & Insert Geometry | -M (Medium Chipbreaker) | -M Medium Profile |
| Recommended Feed (f) - Grooving | 0.06 - 0.15 mm/rev | 0.0024 - 0.0059 in/rev |
| Recommended Feed (f) - Parting | 0.04 - 0.09 mm/rev | 0.0016 - 0.0035 in/rev |
| Cutting Speed (Vc) - Steel & Stainless | 120 - 240 m/min | 394 - 787 SFM |
Model Nomenclature Breakdown: MGMN200-M NC3120
Double-ended grooving
2.0mm cutting width
Medium chipbreaker
PVD Coated Grade
Looking for rigid external grooving toolholders or modular blocks designed for secure MGMN 200 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for CNC turning operations involving external grooving, face grooving, contour profiling, and clean parting-off across carbon steels (1045, 4140), alloy steels, and stainless steels (304, 316).
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard MGMN-compatible external grooving tool blocks and modular blades matching 2.0mm pocket widths.
- Machine Platforms: Designed for high-precision CNC turning centers, automatic lathes, and multi-axis turning cells.
- Coolant Systems: Compatible with both dry cutting and high-pressure flood coolant configurations to optimize tool life.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3120 performs across different ISO material classifications ensures maximum productivity.
| ISO Material Group | Workpiece Description | KORLOY NC3120 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel & Alloy Steel (C45, 4140, 8620) | Advanced PVD coating provides exceptional resistance to flank wear and cratering, delivering consistent tool life in general steel turning. | Sandvik GC4225 / Iscar IC908 |
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316) | Tough carbide substrate prevents thermal cracking and chipping under high cutting temperatures. | Kennametal KC5010 / Seco CP200 |
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 primary application for KORLOY NC3120 grade?
A: NC3120 is a versatile PVD coated grade optimized for general machining, grooving, and parting of carbon steels, alloy steels, and stainless steels.
Q: How does the -M chipbreaker perform during parting-off operations?
A: The -M medium geometry provides stable chip rolling and breaking across normal feed rates, preventing stringy chip accumulation.
Q: How many inserts 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.