Korloy MGMN300-G PC9030 3mm Double-Ended Stainless Steel Grooving Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MGMN300-G PC9030 is a heavy-duty 3.0mm Double-Ended Grooving Insert engineered for maximum efficiency in Stainless Steel and Heat-Resistant Alloys. When machining tough materials like 304, 316, or Titanium, standard CVD coatings often fail due to chip welding and edge chipping. The PC9030 PVD grade features a specialized TiAlN nano-coating with a low friction coefficient, ensuring that chips slide off the 3mm edge without sticking, even in deep radial grooving and high-load parting-off operations.
Superior Thermal Management: The 3.0mm width provides an excellent heat sink for the cutting edge. Combined with the high-temperature resistance of the PC9030 coating, this insert maintains its hardness even during prolonged cuts in work-hardening stainless steels.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-G |
| Insert Width (w) | 3.0 mm |
| Grade | PC9030 (Premium PVD for Stainless) |
| Chipbreaker | -G (Reinforced Universal Geometry) |
Core Performance Benefits:
- Maximum Edge Reliability: The -G geometry is reinforced to handle the high cutting forces required for large diameter stainless steel parting.
- Anti-Adhesion Technology: Specifically designed to prevent Built-Up Edge (BUE), which is the primary cause of poor surface finish in stainless machining.
- Double-Ended Economy: Two sharp, usable cutting edges per insert provide a high return on investment.
- Exceptional Rigidity: The 3mm width offers superior lateral strength, preventing tool "walking" or deflection during radial plunging.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Stainless Steel (304/316) | 80 - 160 m/min | 0.08 - 0.20 mm/rev |
| Duplex Stainless Steel | 50 - 100 m/min | 0.06 - 0.15 mm/rev |
| Titanium Alloys | 40 - 80 m/min | 0.05 - 0.12 mm/rev |
Compatible Tool Holders:
Pairs with all standard 3.0mm MGEHR/L and internal MGIVR tool bars:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3
- Internal Holders: MGIVR 2016-3 / 2520-3
Choosing the Grade: PC9030 vs. NC3120
The 3.0mm width is used for both steel and stainless, but the grade choice is vital:
The Stainless Specialist. PVD coating. Sharper edge. Best for 300-series stainless, titanium, and any material that is "sticky" or gummy.
The Steel Specialists. CVD coating. Best for carbon steel, alloy steel, and cast iron where high-speed wear resistance or heavy shock is needed.
Machinist's Pro Tip: For the MGMN300-G PC9030, if you are parting-off 304 stainless steel tubing, ensure your center height is perfect. Because stainless steel work-hardens instantly, a tool set too low will rub and burn out the PC9030 coating prematurely.
Packaging: 10 pieces per box.
Korloy MGMN300-G PC9030 price, 3mm grooving insert for 304 stainless steel, best parting tool for 316L stainless, MGMN300-G speed and feed for Titanium, PVD coated 3.0mm grooving insert
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.