Korloy MGMN500-M NC3120 5mm Double-Ended Universal Steel Grooving Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MGMN500-M NC3120 is a heavy-duty 5.0mm Double-Ended Grooving Insert engineered for Universal Steel Machining. Featuring the high-performance NC3120 CVD grade, this insert is the go-to choice for workshops tackling large-scale projects with varying steel grades. It bridges the gap between high-speed wear resistance and mechanical toughness, providing stable and predictable tool life even in demanding cutting environments.
Rigidity for Large Workpieces: At 5.0mm wide, the MGMN500-M offers the lateral strength required for deep radial plunging in large diameter bars. The NC3120 grade ensures that the cutting edge remains intact through both continuous and slightly interrupted passes.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN500-M |
| Insert Width (w) | 5.0 mm |
| Grade | NC3120 (Universal Steel Grade - CVD) |
| Chipbreaker | -M (Stable Medium-Cutting Geometry) |
Core Performance Benefits:
- Universal Versatility: Excels in Carbon Steel, Alloy Steel, and Mild Steel without needing to switch inserts.
- High Thermal Stability: Multi-layer CVD coating protects the carbide substrate from the intense heat of 5mm wide cuts.
- 5.0mm High Rigidness: Minimal tool deflection during high-torque parting, ensuring square and accurate results.
- Anti-Chipping Substrate: Specifically formulated to absorb micro-shocks, extending edge life in semi-interrupted cuts.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Medium Carbon Steel (1045) | 110 - 210 m/min | 0.12 - 0.28 mm/rev |
| Alloy Steel (4140/4340) | 90 - 180 m/min | 0.10 - 0.22 mm/rev |
| Mild Steel (Low Carbon) | 130 - 260 m/min | 0.15 - 0.32 mm/rev |
Compatible Tool Holders:
Requires heavy-duty 5.0mm MGEHR/L holders to handle high cutting forces:
- External Holders: MGEHR 2525-5 / 3232-5 / 4040-5
Pro Choice: NC3120 vs. NC3020/NC3030 for 5.0mm Cuts
At 5.0mm width, the right balance between wear and toughness is vital:
The Safe Bet. Use for general CNC production. It's the most stable choice when you're not sure about the material's exact hardness or consistency.
The Efficiency Specialist. Best for perfectly stable continuous cuts to maximize speed and life.
The Tough Warrior. Best for heavy interruptions, scale, and manual lathes where the edge takes a beating.
Machinist's Pro Tip: For MGMN500-M NC3120, don't forget to check your machine's spindle torque. 5mm wide cuts at high speed require significant power. If the machine vibrates, try reducing the speed slightly but maintaining a healthy feed rate to keep the chipbreaker engaged.
Packaging: 10 pieces per box.
Korloy MGMN500-M NC3120 price, 5.0mm universal steel grooving insert, MGMN500-M cutting speed and feed data, heavy duty 5mm parting tool for CNC, NC3120 vs NC3030 for 5mm inserts
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.