Korloy MGMN300-M PC5300 3mm 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 MGMN300-M PC5300 is the ultimate 3.0mm Double-Ended Universal Grooving Insert. Designed as the most versatile solution in the Korloy lineup, the PC5300 PVD grade is engineered to handle everything from carbon steel to stainless steel, even under unstable or interrupted cutting conditions. If your workshop requires a single 3.0mm insert that can "do it all" with maximum reliability and resistance to chipping, the MGMN300-M PC5300 is the industry standard.
The Toughness Specialist: Unlike specialized wear-resistant grades, PC5300 focuses on edge security. The 3.0mm width provides excellent rigidity, making it the perfect choice for parting-off solid bars where the cut becomes increasingly unstable toward the center.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-M |
| Insert Width (w) | 3.0 mm (+/- 0.02) |
| Grade | PC5300 (Universal High-Toughness - PVD) |
| Chipbreaker | -M (Stable Chip Control for Multi-Materials) |
Core Performance Benefits:
- Extreme Chipping Resistance: Sub-micron substrate provides the toughness needed for heavy interrupted cuts and vibrations.
- Multi-Material Versatility: Excellent performance across Steel (P), Stainless Steel (M), and even some Cast Iron (K) applications.
- 3.0mm Industry Standard: The perfect width for general-purpose parting-off, minimizing material waste while maintaining tool life.
- Advanced PVD Coating: New-generation coating technology reduces friction and heat buildup at the cutting edge.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 100 - 180 m/min | 0.08 - 0.20 mm/rev |
| Alloy Steel (42CrMo) | 80 - 150 m/min | 0.07 - 0.18 mm/rev |
| Stainless Steel (General) | 70 - 130 m/min | 0.06 - 0.15 mm/rev |
Compatible Tool Holders:
Universal 3.0mm compatibility with standard MGEHR/L or internal MGIVR tool bars:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3
- Internal Holders: MGIVR 2016-3 / 2520-3 (3.0mm)
The Grade Choice: PC5300 vs. PC9030
Korloy's PVD grades often overlap, but choosing the right one for your 3.0mm groove is key to tool life:
The Universal Protector. Use this if you are cutting a variety of materials or if you face vibrations and interrupted cuts. It is much tougher and prevents edge breakage better than any other grade.
The Stainless Specialist. Optimized specifically for the sticky nature of M-group materials. Choose this for continuous, high-volume stainless steel runs to maximize wear resistance.
Machinist's Pro Tip: For MGMN300-M PC5300, if you are cutting pre-hardened steel or parts with heavy scale, reduce your cutting speed ($Vc$) slightly but maintain a high feed rate. This allows the tough substrate of the PC5300 to work through the hardness without over-heating the coating.
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.