Korloy Indexable Carbide Insert SPMT07T208-PD PC5300 | SPMT 2.5-2 (Imperial Equivalent) Milling Inserts for Stainless Steel & Steel Machining - 10pcs Box
✓ Free Worldwide Shipping
✓ 100% Guaranteed Compatibility | Direct Factory Direct
✓ Fast Dispatch within 24–48 Hours
✓ Technical Support: Need grade selection help? [Contact Engineer]
Korloy Indexable Carbide Insert SPMT07T208-PD PC5300 | SPMT 2.5-2 (Imperial Equivalent) Milling Inserts for Stainless Steel & Steel Machining - 10pcs Box
High-Performance ISO-Standard Indexable Cutting Tools for Industrial CNC Stainless Steel & Steel Machining
1. Product Overview
"Which indexable milling or U-drill insert is best suited for stable finishing and medium machining of stainless steel and alloy steel with superior fracture toughness?" CNC engineers and machinists frequently specify the Korloy SPMT07T208-PD PC5300. This industrial-grade indexable carbide insert combines an advanced PVD multi-layer coated carbide substrate with a specialized -PD chipbreaker geometry, engineered to deliver smooth chip flow, minimized thermal cracking, and extended tool life during high-performance face milling, shoulder milling, and slotting operations.
2. Product Key Features
- PC5300 Grade Technology: Features a robust PVD nano-structured coating optimized for high thermal shock resistance and edge stability in stainless steel (ISO M) and steel (ISO P).
- -PD Geometry Chipbreaker: Positive rake angle design with a sharp cutting edge that significantly reduces cutting forces, friction, and work-hardening tendencies.
- ISO/ANSI Standard Compliance: Manufactured strictly under international indexable tooling standards to guarantee exact indexing repeatability and secure pocket clamping.
- High Productivity Package: Supplied in industrial factory-sealed boxes of 10 pieces to minimize tool changeover downtime.
3. Technical Specifications & Model Breakdown
Review the comprehensive parameter specifications, metric-to-imperial conversions, and ISO model code breakdown below for seamless integration into your CNC machining environment.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | SPMT07T208-PD | SPMT 2.5-2 |
| Inscribed Circle (I.C.) | 7.94 mm | 5/16 inch (0.3125") |
| Insert Thickness (T2) | 2.38 mm | 3/32 inch (0.0937" / 2.5 series) |
| 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 |
|---|---|---|
| Stainless Steel (M10 - M30) | 120 - 210 | 0.05 - 0.15 |
| Carbon Steel / Alloy Steel (P20) | 150 - 270 | 0.06 - 0.18 |
| Heat-Resistant Superalloys | 35 - 80 | 0.03 - 0.10 |
Looking for matching tool holders or indexable cutters to fit these inserts?
Browse Compatible Face Milling Cutters & Shoulder Mills4. Product Application Scenarios
The Korloy SPMT07T208-PD PC5300 insert excels across diverse industrial manufacturing environments:
- Medical Device Manufacturing: Precision contouring and slotting of surgical grade stainless steel components.
- Aerospace Brackets & Housings: High-precision shoulder milling of heat-resistant alloy structural elements.
- Fluid Control Systems: Machining stainless steel valve bodies, pump housings, and pipe flanges.
5. Compatibility
Engineered to integrate seamlessly into standard industrial tooling setups:
- Tool Bodies: Fully compatible with small-diameter 90-degree shoulder milling cutters and face mills utilizing SPMT 07T2 pockets.
- Machine Tools: Optimized for CNC vertical machining centers (VMCs), compact CNC milling units, and Swiss-type lathes with live milling tools.
6. Material Comparison & Workpiece Matrix
Understanding grade characteristics ensures maximum metal removal rates and safeguards against premature edge breakdown.
| ISO Material Category | Target Materials | PC5300 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and precipitation-hardening stainless steels | Excellent (Primary Application - High Toughness) |
| P (Steel) | Carbon steel, alloy steel, structural steel | Very Good (Stable General Milling) |
| S (Superalloys) | Nickel-based and titanium alloys | Conditional / Low-speed wet cutting |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized manufacturers, guaranteeing verified batch authenticity and consistent industrial tool performance.
Fast Global Logistics
Maintained warehouse inventory and optimized international shipping lines ensure rapid dispatch to eliminate production line bottlenecks.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: What makes the Korloy PC5300 grade ideal for stainless steel machining?
A: The PC5300 grade features a specialized PVD multi-layer nano-coating combined with a tough carbide substrate, which resists built-up edge (BUE) formation and thermal cracking common when cutting stainless steels.
Q: How many inserts are packaged per box?
A: Each standard industrial order includes 10 factory-sealed indexable carbide inserts, individually protected against shipping shock and contamination.
Q: Is the SPMT07T208 size suitable for compact cutter bodies?
A: Yes, the 07T2 size features a 7.94mm inscribed circle and a 2.38mm thickness, making it ideal for smaller diameter indexable milling cutters requiring high precision.
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.