KORLOY MGMN400-T PC5300 Indexable Grooving & Parting Inserts | MGMN Series PVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMN400-T PC5300 0.157 inch Metric Grooving Tooling
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KORLOY MGMN400-T PC5300 Indexable Grooving & Parting Inserts (10pcs/box)
High-Durability PVD Coated Double-Ended Carbide Inserts Featuring T-Type Chipbreaker for CNC Lathe Steel and Stainless Steel Grooving & Parting
1. Product Overview: Which insert is best for high-efficiency steel and stainless steel general grooving and parting-off applications?
Which indexable double-ended grooving insert ensures exceptional wear resistance, thermal shock stability, and reliable chip control when executing precision parting-off or 4.0mm wide grooving on CNC turning centers working with alloy steels and stainless steels? Verified by industrial metalworking standards, the KORLOY MGMN400-T PC5300 is engineered specifically for general-purpose grooving and parting tasks that require superior fracture toughness, dual-edge cost-efficiency, and smooth chip evacuation. It features the advanced PC5300 grade—a specialized PVD multi-layer coated carbide substrate optimized for high resistance to built-up edge and thermal cracking under continuous or unstable cutting conditions. Combined with its precision T-type chipbreaker geometry (-T), it effectively controls chip curling and reduces cutting forces during radial feeds.
2. Product Core Advantages (Key Features)
- PC5300 Advanced PVD Grade: Features a high-toughness carbide substrate with a smooth PVD coating designed to minimize friction and resist flank wear in steel and stainless steel turning.
- T-Type Chipbreaker Geometry (-T): Designed with a specialized multi-directional groove form that promotes stable chip breaking across wide feed ranges during general grooving and parting.
- 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 during heavy parting 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 ($W$) | 4.0 mm | 0.157 inch (~5/32") |
| Chipbreaker Style | -T (General Grooving) | -T (General Grooving) |
| Recommended Feed ($f$) - Grooving | 0.05 - 0.12 mm/rev | 0.0020 - 0.0047 in/rev |
| Recommended Feed ($f$) - Parting | 0.03 - 0.08 mm/rev | 0.0012 - 0.0031 in/rev |
| Cutting Speed ($Vc$) - Steel / Stainless | 120 - 240 m/min | 395 - 790 SFM |
Model Nomenclature Breakdown: MGMN400-T PC5300
Double-ended grooving
4.0mm cutting width
T-type chipbreaker
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 lathe operations involving external OD grooving, face grooving, bar stock parting-off, and general-purpose turning across carbon steels, alloy steels, and austenitic stainless steel components.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits standard MGMN-compatible external grooving tool blocks and modular toolholders matching 4.0mm pocket widths.
- Machine Platforms: Designed for CNC turning centers, automatic lathes, and high-productivity production cells.
- Coolant Systems: Fully compatible with flood coolant and high-pressure coolant setups to evacuate chips effectively from 4.0mm channels.
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 |
|---|---|---|---|
| P Group (Steel) | Carbon Steel, Alloy Steel (4140, 1045, 8620) | High toughness PVD grade providing excellent edge retention and thermal crack resistance in steel grooving and parting. | Sandvik GC1125 / Iscar IC908 |
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316) | Superior anti-built-up edge characteristics and smooth shear action for gummy stainless steel materials. | Kennametal KCU25 / Kyocera PR1535 |
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: What specific cutting conditions is the -T chipbreaker optimized for?
A: The -T chipbreaker is engineered for general-purpose grooving and parting, providing versatile chip breaking control across medium feeds in steels and stainless steels.
Q: How can I prevent tool breakage during parting-off operations on solid bars?
A: Reduce the feed rate by 30% to 50% when approaching the center axis of the workpiece, and ensure the tool is precisely set to the spindle centerline.
Q: How many inserts come in a standard box?
A: Each factory package 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.