Korloy Indexable Carbide Insert SPMT11T308-PD PC5300 | SPMT42-2-PD (Imperial Equivalent) Milling Inserts for Steel and Stainless Steel Machining - 10pcs Box
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Korloy SPMT11T308-PD PC5300 Indexable Carbide Milling Inserts (10pcs)
High-Performance ISO-Standard Cutting Tools for Industrial CNC Milling
1. Product Overview
"Which indexable milling insert is best suited for stable to semi-stable machining of carbon steel and alloy steel under high feed rates?" CNC engineers and machinists frequently turn to the Korloy SPMT11T308-PD PC5300. This industrial-grade tool combines an advanced PVD-coated carbide grade with a specialized -PD chipbreaker geometry, engineered to deliver smooth chip evacuation, low cutting resistance, and extended tool life during high-performance face milling and shoulder milling operations.
2. Product Key Features
- PC5300 Grade Technology: Utilizes a tough carbide substrate with a specialized multi-layer PVD coating optimized for thermal shock resistance and superior flank wear protection.
- -PD Geometry Chipbreaker: Sharp cutting edge design with a positive rake angle, significantly reducing cutting forces and chatter on complex workpieces.
- ISO/ANSI Compliance: Manufactured strictly under international standards to guarantee interchangeability and precise positioning accuracy in standard cutter bodies.
- High Productivity Pack: Supplied in an industrial box of 10 pieces, minimizing machine downtime and tooling changeover frequency.
3. Technical Specifications & Model Breakdown
Review the comprehensive parameter specifications, metric-to-imperial comparisons, and model code breakdown below to ensure seamless integration into your CNC milling setup.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | SPMT11T308-PD | SPMT42-2-PD (Approx.) |
| Inscribed Circle (I.C.) | 6.35 mm | 1/4 inch (0.250") |
| Insert Thickness | 3.97 mm | 5/32 inch (0.156") |
| Corner Radius | 0.8 mm | 1/32 inch (0.031") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed ($v_c$) m/min | Feed per Tooth ($f_z$) mm/z |
|---|---|---|
| Carbon Steel (P10 - P30) | 150 - 260 | 0.08 - 0.22 |
| Alloy Steel / Tool Steel | 120 - 210 | 0.06 - 0.18 |
| Stainless Steel (M10 - M25) | 90 - 160 | 0.05 - 0.15 |
Looking for matching tool holders to fit these inserts?
Browse Compatible Face & Shoulder Milling Cutters4. Product Application Scenarios
The Korloy SPMT11T308-PD PC5300 insert excels across diverse heavy-duty industrial environments:
- Automotive Component Manufacturing: Efficient roughing and semi-finishing of engine blocks, transmission housings, and forged steel brackets.
- General Mechanical Engineering: Face milling structural steel plates, machine frames, and carbon steel weldments.
- Mold and Die Industry: Slotting and peripheral contouring of medium-hardness alloy steel mold bases.
5. Compatibility
Designed to integrate smoothly into standard industrial hardware:
- Cutter Bodies: Fits all standard 90-degree shoulder milling cutters and indexable face mills designed for SPMT 11T3 series inserts.
- Machine Tools: Fully compatible with vertical machining centers (VMCs), horizontal machining centers (HMCs), and heavy CNC milling rigs.
6. Material Comparison & Workpiece Matrix
Understanding grade suitability helps maximize tool economy and prevent premature insert failure.
| ISO Material Category | Target Materials | PC5300 Performance Suitability |
|---|---|---|
| P (Steel) | Low carbon steel, alloy steel, cast steel | Excellent (Primary Application) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels | Good (Stable Conditions) |
| K (Cast Iron) | Gray cast iron, ductile iron | Conditional / Secondary Use |
7. Why Choose Us
100% Genuine Guarantee
We source directly from authorized global manufacturers, ensuring absolute authenticity and reliable batch-to-batch tool performance.
Fast Global Logistics
Optimized supply chain routes and stocked inventory mean rapid dispatch to keep your production lines moving without costly delays.
Technical Expertise
Backed by experienced CNC tooling engineers ready to assist with custom feed/speed calculations and application troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: What materials are best machined with the Korloy PC5300 grade?
A: The PC5300 grade is specifically engineered for high-efficiency milling of carbon steels, alloy steels, and tool steels, offering exceptional resistance to thermal cracking and notch wear.
Q: How many inserts are included in a standard purchase package?
A: Each standard factory-sealed box contains 10 individual indexable carbide inserts, protected against impact during transit.
Q: Can the -PD chipbreaker handle interrupted cuts?
A: While the -PD geometry is optimized for smooth, continuous to light interrupted cutting with a positive low-resistance rake, moderate interruptions can be handled effectively by lowering feed rates slightly upon entry.
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.