KORLOY MGMN250-T PC5300 Indexable Grooving & Parting Inserts | CVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / MGMN250-T PC5300 0.098 inch Metric Grooving Tooling
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✓ Technical Support: Need grade selection help? Contact Engineer
KORLOY MGMN250-T PC5300 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance CVD Coated Carbide Inserts with 2.5mm Width & -T Chipbreaker Geometry for CNC Lathe Steel & Cast Iron Turning
1. Product Overview: Which insert is best for stable chip control, medium grooving, and parting in alloy and carbon steels?
Which indexable grooving insert featuring a 2.5mm cutting width, an integrated -T chipbreaker geometry, and specialized substrate offers superior chip curling control, thermal resistance, and edge stability when executing continuous grooving, necking, or parting-off on CNC turning centers machining alloy steels, carbon steels, and ductile cast irons? Backed by certified industrial metalworking data and ISO tooling standards, the KORLOY MGMN250-T PC5300 (equivalent metric 2.5mm width with -T chipbreaker / imperial 0.098 inch width) is engineered specifically for general-to-heavy turning operations requiring predictable chip breaking and high wear resistance. It incorporates the advanced PC5300 grade—a specialized CVD multi-layer coated carbide substrate optimized for heavy continuous cutting. Combined with its designated -T geometry, it effectively prevents long bird-nest chips and reduces cutting forces during high-speed feed passes.
2. Product Core Advantages (Key Features)
- PC5300 Advanced CVD Grade: Features a high-strength carbide substrate combined with a thick CVD multi-layer coating designed for exceptional wear resistance, high cutting speed capability, and extended tool life in steel and cast iron machining.
- -T Chipbreaker Geometry: Engineered with a positive rake design and specialized chip-forming grooves that deliver reliable chip evacuation and minimize workpiece surface scratching.
- 2.5mm Cutting Width & Dual-Edge Economy: Provides a robust 2.5mm width profile with dual-sided indexable cutting edges to maximize operational cost efficiency.
- Rigid Central Clamping Interface: Offers secure seating and high clamping stability in standard tool holders to eliminate micro-vibrations and chatter under heavy feed rates.
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 Grooving & Parting | MGMN Grooving & Parting |
| Cutting Width (W) | 2.5 mm | 0.098 inch |
| Chipbreaker & Insert Geometry | -T (General Purpose Grooving) | -T Chipbreaker Profile |
| Recommended Feed (f) - Grooving | 0.05 - 0.15 mm/rev | 0.0020 - 0.0059 in/rev |
| Recommended Feed (f) - Parting | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 in/rev |
| Cutting Speed (Vc) - Alloy & Carbon Steels | 120 - 250 m/min | 394 - 820 SFM |
Model Nomenclature Breakdown: MGMN250-T PC5300
Double-ended grooving
2.5mm cutting width
Chipbreaker geometry
CVD Coated Grade
Looking for precision external grooving toolholders or modular blocks designed for secure MGMN 250 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for CNC turning operations involving external grooving, face grooving, necking, and parting-off across alloy steels, carbon steels, structural steels, and grey or ductile cast irons.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard MGMN-compatible external grooving tool blocks and modular blades matching 2.5mm pocket widths.
- Machine Platforms: Designed for high-rigidity CNC turning centers, automatic lathes, and high-volume production lines.
- Coolant Systems: Fully compatible with flood coolant and high-pressure delivery systems to optimize chip evacuation and thermal stability.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade PC5300 performs across different ISO material classifications ensures maximum machining productivity.
| ISO Material Group | Workpiece Description | KORLOY PC5300 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Alloy Steel, Carbon Steel (42CrMo, C45) | Thick CVD coating delivers exceptional wear resistance and high thermal capability for continuous steel turning. | Sandvik GC4325 / Kennametal KC9315 |
| K Group (Cast Iron) | Grey Cast Iron, Ductile Iron (HT250, QT500) | Strong thermal stability and abrasive wear resistance make it highly effective for cast iron grooving. | Seco TP2500 / Iscar IC8250 |
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 is the primary function of the -T chipbreaker geometry?
A: The -T chipbreaker is designed to curl and break continuous chips into manageable segments, preventing bird-nesting and surface scratching during steel turning.
Q: Why choose the PC5300 CVD grade for 2.5mm width grooving?
A: PC5300 features a heavy-duty multi-layer CVD coating that provides excellent heat resistance and wear protection during high-speed steel and cast iron machining.
Q: How many inserts are included in a single 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
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.