KORLOY MGMR300-6D-PT PC5300 Indexable Grooving & Parting Inserts | MGMR Series PVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMR300-6D-PT PC5300 0.118 inch Metric Grooving Tooling
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KORLOY MGMR300-6D-PT PC5300 Indexable Grooving & Parting Inserts (10pcs/box)
High-Durability PVD Coated Carbide Inserts for CNC Lathe Steel and Stainless Steel Grooving, Parting-Off, and Turning Applications
1. Product Overview: Which insert is best for high-efficiency steel and stainless steel grooving and parting applications?
Which indexable grooving insert ensures exceptional wear resistance, thermal shock stability, and reliable chip control when executing deep parting-off or 3.0mm grooving on CNC turning centers working with alloy steels and stainless steels? Verified by industrial metalworking standards, the KORLOY MGMR300-6D-PT PC5300 is engineered specifically for demanding metalcutting tasks that require superior fracture toughness 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 interrupted or continuous cutting conditions. Combined with its precision PT-type chipbreaker geometry, it controls chip formation and reduces cutting forces during deep radial feeds.
2. Product Core Advantages (Key Features)
- PC5300 Advanced PVD Grade: Features a tough carbide substrate with a smooth PVD coating designed to minimize friction and resist wear in steel and stainless steel turning.
- PT-Type Chipbreaker Geometry: Engineered with a positive rake angle and specialized groove profile to ensure controlled chip curling and clean evacuation from 3.0mm wide channels.
- 6D Depth Capability: Optimized design structure supporting deeper grooving and parting profiles up to 6 times the width ratio under stable setups.
- Rigid Locating Interface: Provides high clamping stability and precise indexability 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 | MGMR Grooving & Parting | MGMR Grooving & Parting |
| Cutting Width ($W$) | 3.0 mm | 0.118 inch (~1/8") |
| Depth Ratio Capacity | Up to 6D Depth | Up to 6D Depth |
| Recommended Feed ($f$) - Grooving | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 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: MGMR300-6D-PT PC5300
Grooving geometry
3.0mm cutting width
Up to 6D depth capacity
Positive chipbreaker
PVD Coated Grade
Looking for precision external grooving toolholders or parting blades designed for secure MGMR 300 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blades4. Product Application Scenarios
Ideal for high-precision CNC lathe operations involving deep external OD grooving, face grooving, bar stock parting-off, and profile turning across carbon steels, alloy steels, and austenitic stainless steel workpieces.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits standard MGMR-compatible external grooving blocks, tool blades, and modular parting systems matching 3.0mm pocket dimensions.
- Machine Platforms: Designed for CNC turning centers, Swiss-type lathes, and multi-axis lathe turning machines.
- Coolant Systems: Fully compatible with high-pressure coolant and flood coolant systems to assist chip evacuation in deep 6D grooving operations.
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) | High toughness PVD grade providing excellent edge retention and thermal crack resistance in steel parting. | Sandvik GC1125 / Iscar IC808 |
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316) | Excellent 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 benefits does the PC5300 PVD grade offer when machining stainless steel and alloy steel?
A: PC5300 combines a high-toughness carbide substrate with a smooth PVD coating that resists thermal wear and built-up edge, resulting in superior performance during deep 6D grooving and parting tasks.
Q: How should feed rate be handled when reaching the center during parting-off with a 3.0mm insert?
A: It is recommended to reduce the feed rate by 30% to 50% when the insert reaches the last 0.8mm of the center axis to eliminate burrs and protect the insert tip from impact shock.
Q: How many inserts are included in each package?
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.