Korloy MGMN150-G NC3120 1.5mm Double-Ended Universal Grooving Insert (10pcs)
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The Original Korloy MGMN150-G NC3120 is a versatile 1.5mm Double-Ended Grooving Insert designed for General Purpose Steel Machining. When your production requires a balance between high wear resistance and edge toughness, the NC3120 grade is the ideal choice. The 1.5mm narrow width minimizes material waste, making it perfect for precision parting-off and narrow grooving in Carbon Steel, Alloy Steel, and Cast Iron. Featuring the reinforced -G chipbreaker, this insert ensures stable chip control even in varied cutting depths.
The Universal Choice: NC3120 is engineered for versatility. It performs exceptionally well across a wide range of cutting speeds, making it the "go-to" grade for job shops and CNC environments where multiple steel types are processed using the same setup.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN150-G |
| Insert Width (w) | 1.5 mm |
| Grade | NC3120 (Universal CVD Coating) |
| Application | General Steel / Semi-Finishing |
Core Performance Benefits:
- Precision Material Saving: The ultra-narrow 1.5mm kerf reduces raw material consumption, crucial for high-value metal components.
- Stable Edge Life: The NC3120 coating offers excellent adhesion resistance, preventing chip-welding during medium-speed operations.
- Double-Ended Efficiency: Two usable edges per insert provide a low cost-per-cut, maximizing tool ROI.
- Reliable Parting: The reinforced -G geometry stabilizes the 1.5mm blade against lateral forces during deep parting.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Mild Steel | 120 - 210 m/min | 0.03 - 0.08 mm/rev |
| Alloy Steel | 100 - 180 m/min | 0.03 - 0.07 mm/rev |
| Carbon Steel (1045) | 110 - 190 m/min | 0.03 - 0.08 mm/rev |
Compatible Tool Holders:
Must be used with dedicated 1.5mm MGEHR/L tool holders:
- External Holders: MGEHR 1010-1.5 / 1212-1.5 / 1616-1.5
Tech Tip: Why choose NC3120 for 1.5mm Grooving?
In narrow grooving, NC3120 acts as the middle ground between high speed and high toughness:
The Generalist. Best for shops machining various steel grades. It is more forgiving than NC3020 if the cutting speed fluctuates.
NC3020 is for Pure Speed in stable runs. NC3030 is for Heavy Impact and interrupted cuts. NC3120 sits perfectly in between.
Machinist's Pro Tip: For 1.5mm narrow parting, ensure your tool is set exactly to the center height. Even 0.1mm deviation can lead to premature tip wear or a "pip" left on the workpiece when using universal grades like NC3120.
Packaging: 10 pieces per box.
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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.