KORLOY MGMN300-M PC5300 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMN300-M PC5300 0.118 inch Metric Grooving Tooling
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KORLOY MGMN300-M PC5300 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Double-Ended Carbide Inserts Featuring M-Type Chipbreaker for CNC Lathe Stainless Steel & Alloy Grooving & Parting
1. Product Overview: Which insert is best for high-reliability stainless steel and alloy grooving and parting-off?
Which indexable double-ended grooving insert offers exceptional fracture toughness, thermal shock resistance, and precise chip control when executing parting-off or 3.0mm wide grooving on CNC turning centers machining austenitic stainless steels, heat-resistant superalloys, and alloy structural steels? Backed by industrial metalworking standards and empirical tooling databases, the KORLOY MGMN300-M PC5300 (equivalent metric 3.0mm / imperial 0.118 inch width) is engineered specifically for demanding stainless steel turning, external grooving, and parting operations requiring superior resistance to built-up edge and thermal cracking. It incorporates the advanced PC5300 grade—a specialized PVD nano-structured multi-layer coated carbide substrate optimized for excellent toughness and smooth cutting behavior. Combined with its precision M-type chipbreaker geometry (-M), it effectively controls chip formation and minimizes cutting forces during radial feeds.
2. Product Core Advantages (Key Features)
- PC5300 Advanced PVD Grade: Features a high-toughness fine-grain carbide substrate combined with a specialized nano-PVD coating designed for superior resistance to adhesive wear and thermal shock in stainless steel machining.
- M-Type Chipbreaker Geometry (-M): Engineered with a medium-duty groove form that promotes stable chip curling and breaking across broad feed rates during grooving.
- Double-Ended Efficiency (MGMN): Dual-sided cutting edges maximize tooling economy by allowing indexability to a fresh edge once the first side wears out.
- Rigid Central Clamping Interface: Provides high clamping stability and precise seating to eliminate micro-vibrations and chatter during 3.0mm parting and grooving passes.
3. Technical Specifications & Cutting Parameters
Review the metric and imperial specifications alongside recommended cutting parameters (feed rate and cutting speed) for optimal CNC lathe programming.
| Specification Parameter | Metric (ISO) | Imperial Equivalent |
|---|---|---|
| Insert Type / Series | MGMN Double-Ended Grooving | MGMN Double-Ended Grooving |
| Cutting Width (W) | 3.0 mm | 0.118 inch |
| Chipbreaker Style | -M (Medium Machining) | -M (Medium Machining) |
| Recommended Feed (f) - Grooving | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 in/rev |
| Recommended Feed (f) - Parting | 0.02 - 0.06 mm/rev | 0.0008 - 0.0024 in/rev |
| Cutting Speed (Vc) - Stainless Steel | 100 - 220 m/min | 330 - 720 SFM |
Model Nomenclature Breakdown: MGMN300-M PC5300
Double-ended grooving
3.0mm cutting width
Medium chipbreaker
PVD Coated Grade
Looking for precision external grooving toolholders or modular blocks designed for secure MGMN 300 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for high-precision CNC turning operations involving external grooving, face profiling, bar stock cutoff, and turning across austenitic stainless steels, precipitation-hardening steels, and heat-resistant alloys.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits heavy-duty MGMN-compatible external grooving tool blocks and modular blades matching 3.0mm pocket widths.
- Machine Platforms: Designed for high-rigidity CNC turning centers, automatic bar machines, and Swiss-type lathes.
- Coolant Systems: Compatible with high-pressure flood coolants to manage thermal gradients and evacuate chips efficiently in sticky materials.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade PC5300 performs across different ISO material classifications ensures maximum machining efficiency.
| ISO Material Group | Workpiece Description | KORLOY PC5300 Performance | Equivalent Industry Grades |
|---|---|---|---|
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316, 316L) | Superior resistance to built-up edge and chemical wear during stainless steel grooving. | Sandvik GC1125 / Kennametal KC5010 |
| S Group (High-Temp Alloys) | Titanium Alloys, Inconel, Waspaloy | Provides excellent thermal shielding and toughness for challenging high-temp alloy turning tasks. | Iscar IC908 / Seco CP500 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, guaranteeing original metallurgical properties and consistent batch performance.
Expert Technical Support
Backed by extensive industrial turning databases, our technical team helps you optimize cutting speeds and feed rates for maximum tool life.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: Why choose the PC5300 PVD grade for stainless steel and alloy turning applications?
A: The specialized PVD coating provides exceptional resistance to adhesive wear and thermal checking, which prevents built-up edge when cutting sticky materials.
Q: How does the -M chipbreaker enhance performance on the 3.0mm insert?
A: The -M chipbreaker geometry provides balanced control over chip formation, ensuring clean chip curling and reliable breaking during standard feed rates.
Q: How many pieces are included in each box?
A: Each factory-sealed box contains 10 indexable inserts.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.