Korloy MGMN300-M 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-M PC9030 is a high-performance 3.0mm Double-Ended Grooving Insert specifically engineered for Stainless Steel and Heat-Resistant Alloys. As one of the most trusted inserts in the industry, the PC9030 PVD grade is designed to handle the gummy and work-hardening properties of materials like 304 and 316 stainless steel. Its exceptional thermal stability and sharp cutting edge prevent built-up edge (BUE), delivering superior surface finishes in precision 3.0mm grooving and parting operations.
Global Best-Seller: The 3.0mm width offers the ideal balance of tool strength and material economy. Combined with the PC9030 grade, it provides a highly reliable solution for workshops requiring long tool life in difficult-to-cut M-group materials.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-M |
| Insert Width (w) | 3.0 mm (+/- 0.02) |
| Grade | PC9030 (The Stainless Expert - PVD) |
| Application | Stainless Steel (M), Titanium (S), Alloy Steel (P) |
Core Performance Benefits:
- Optimized Anti-Stick Properties: Specialized PVD coating prevents material welding, ensuring a clean cut in gummy stainless alloys.
- Universal 3.0mm Versatility: The industry-standard width for a wide range of parting-off diameters and internal grooves.
- Exceptional Edge Toughness: Resists the micro-chipping caused by the work-hardened layer of stainless steel.
- Advanced Thermal Shield: Maintains edge hardness even during high-heat dry machining or deep plunging.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Stainless Steel (304 / 316) | 80 - 150 m/min | 0.08 - 0.20 mm/rev |
| Duplex Stainless Steel | 50 - 110 m/min | 0.07 - 0.15 mm/rev |
| Inconel / Ti Alloys | 30 - 65 m/min | 0.05 - 0.12 mm/rev |
Compatible Tool Holders:
For high-precision 3.0mm grooving, pair with our standard MGEHR/L or internal MGIVR bars:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3 / 3232-3
- Internal Holders: MGIVR 2016-3 / 2520-3
Stainless Specialist Choice: PC9030 vs. PC5300
Korloy provides two main PVD options for 3.0mm grooving. Here is how to choose:
The Stainless Specialist. Optimized specifically for M-group materials. It reduces chemical affinity with the material, drastically cutting down on built-up edge.
The Universal Tough Grade. Best for general steels and heavy interrupted cuts. It is tougher than PC9030 but may wear faster in high-nickel stainless steels.
Machinist's Pro Tip: For MGMN300-M PC9030 on 304 Stainless, always use a constant surface speed (G96) if possible. This ensures the 3.0mm tip maintains the correct temperature as it nears the center during parting-off, extending tool life significantly.
Packaging: 10 pieces per box.
Korloy MGMN300-M PC9030 for 304 stainless steel, 3.0mm parting insert for 316 stainless, MGMN300-M PC9030 speed and feed data, best insert for duplex stainless steel grooving, PC9030 vs PC5300 3mm grooving
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.