KORLOY MGMN400-02-R PC5300 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMN400-02-R PC5300 0.157 inch Metric Grooving Tooling
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KORLOY MGMN400-02-R PC5300 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Double-Ended Carbide Inserts with 0.2mm Corner Radius for CNC Lathe Stainless Steel & Alloy Grooving
1. Product Overview: Which insert is best for precise radius grooving and parting in stainless and alloy steels?
Which indexable double-ended grooving insert featuring a tight 0.2mm corner radius offers exceptional edge strength, thermal shock resistance, and smooth chip evacuation when executing 4.0mm wide grooving, fine profiling, or parting-off on CNC turning centers machining stainless steels and high-temperature alloys? Backed by industrial metalworking standards and empirical tooling data, the KORLOY MGMN400-02-R PC5300 (equivalent metric 4.0mm width with 0.2mm corner radius / imperial 0.157 inch width) is engineered specifically for demanding precision grooving tasks requiring minimal corner breakout and reliable dual-edge cost efficiency. It incorporates the advanced PC5300 grade—a specialized PVD multi-layer coated carbide substrate optimized for excellent toughness and resistance to built-up edge formation in difficult-to-machine materials. Combined with its specialized geometry, it effectively distributes cutting forces and maintains sharp dimensional control during radial feeds.
2. Product Core Advantages (Key Features)
- PC5300 Advanced PVD Grade: Features a high-toughness carbide substrate combined with an advanced PVD coating designed for superior thermal shock resistance and extended tool life in stainless steel turning.
- 0.2mm Corner Radius (-R) Profile: Engineered with a refined corner radius that balances fine corner definition with enhanced edge strength, preventing micro-chipping during precision groove finishing.
- Double-Ended Economy (MGMN): Dual-sided cutting edges maximize operational efficiency by allowing indexability to a fresh edge once the primary side wears out.
- Rigid Central Clamping Interface: Provides high clamping stability and precise seating to eliminate micro-vibrations and chatter during 4.0mm parting and profiling 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 Radius Grooving | MGMN Radius Grooving |
| Cutting Width (W) | 4.0 mm | 0.157 inch |
| Corner Radius (RE) | 0.2 mm | 0.0079 inch |
| Recommended Feed (f) - Grooving | 0.04 - 0.12 mm/rev | 0.0016 - 0.0047 in/rev |
| Recommended Feed (f) - Parting | 0.03 - 0.08 mm/rev | 0.0012 - 0.0031 in/rev |
| Cutting Speed (Vc) - Stainless & Alloys | 90 - 170 m/min | 295 - 558 SFM |
Model Nomenclature Breakdown: MGMN400-02-R PC5300
Double-ended grooving
4.0mm cutting width
0.2mm corner radius
PVD Coated Grade
Looking for precision external grooving toolholders or modular blocks designed for secure MGMN 400 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for high-precision CNC turning operations involving external grooving, precise radius profile finishing, bar stock cutoff, and facing across austenitic stainless steels, alloy steels, and heat-resistant superalloys.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits heavy-duty MGMN-compatible external grooving tool blocks and modular blades matching 4.0mm pocket widths.
- Machine Platforms: Designed for high-rigidity CNC turning centers, Swiss-type automatic lathes, and heavy production lathes.
- Coolant Systems: Fully compatible with high-pressure coolant delivery systems to control thermal zones and clear chips efficiently.
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 & Duplex Stainless Steel (304, 316, 2205) | Exceptional resistance to thermal cracking and built-up edge formation during continuous stainless turning. | Sandvik GC2135 / Iscar IC908 |
| P Group (Steel) | Alloy Steel, Carbon Steel (42CrMo, C45) | High fracture toughness and stable wear behavior under varying feed rates and fine finishing passes. | Kennametal KC5010 / 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 grooving and parting?
A: The specialized multi-layer PVD coating provides exceptional resistance against adhesive wear and thermal shock, which are common challenges when machining stainless steel and alloy materials.
Q: What is the benefit of the 0.2mm corner radius (-02-R) design?
A: The 0.2mm corner radius offers tighter corner definition for precision profiling while maintaining structural edge strength to resist chipping during radial feeds.
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.