Korloy Indexable U-Drill & Milling Insert SPMT050204-PD PC5300 | SPMT 1.8-1.25 (Imperial Equivalent) Carbide Inserts for Stainless Steel & Alloy Machining - 10pcs Box
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Korloy Indexable U-Drill & Milling Insert SPMT050204-PD PC5300 | SPMT 1.8-1.25 (Imperial Equivalent) Carbide Inserts for Stainless Steel & Alloy Machining - 10pcs Box
High-Performance ISO-Standard Indexable Cutting Tools for Industrial CNC Stainless Steel & Alloy Steel Applications
1. Product Overview
"Which indexable U-drill insert or milling insert provides exceptional thermal shock resistance and stable edge toughness when machining small-diameter stainless steel and heat-resistant alloys at high speeds?" CNC programmers and manufacturing engineers frequently select the Korloy SPMT050204-PD PC5300. This industrial-grade indexable carbide insert features an advanced PVD multi-layer coated grade engineered specifically to resist built-up edge and flank wear, paired with a specialized -PD chipbreaker geometry that ensures smooth, evacuated chips during aggressive indexable drilling and milling operations.
2. Product Key Features
- PC5300 Grade Technology: A high-performance PVD nano-structured coating optimized for stainless steel (ISO M) and alloy steels, providing superior fracture toughness and high thermal crack resistance.
- -PD Geometry Chipbreaker: Positive rake angle design engineered to lower cutting resistance, suppress vibration, and handle fine-to-medium finishing cuts smoothly.
- ISO/ANSI Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee absolute indexing repeatability and secure pocket clamping.
- High Productivity Package: Supplied in industrial factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline shop inventory.
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 | SPMT050204-PD | SPMT 1.8-1.25 |
| Inscribed Circle (I.C.) | 5.0 mm | 0.197 inch (~1.8 series) |
| Insert Thickness (02) | 2.38 mm | 3/32 inch (0.0937" / 1.25 series) |
| Corner Radius | 0.4 mm | 0.016 inch |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed ($v_c$) m/min | Feed per Revolution / Tooth ($f$) mm/rev |
|---|---|---|
| Stainless Steel (M10 - M30) | 110 - 200 | 0.03 - 0.10 |
| Carbon Steel / Alloy Steel (P10 - P30) | 140 - 240 | 0.04 - 0.12 |
| Heat-Resistant Superalloys | 30 - 65 | 0.02 - 0.08 |
Looking for matching indexable U-drills or milling tool holders to fit these inserts?
Browse Compatible Indexable U-Drills & Cutter Bodies4. Product Application Scenarios
The Korloy SPMT050204-PD PC5300 insert performs exceptionally across demanding industrial sectors:
- Micro-Medical Component Machining: Precision small-diameter hole drilling and internal profiling on surgical-grade stainless steel hardware.
- Aerospace Instrumentation: Drilling and contouring operations on compact stainless steel valve blocks and hydraulic micro-fittings.
- Precision Engineering: Miniature pocketing and facing operations on alloy steel components requiring strict dimensional tolerances.
5. Compatibility
Engineered to integrate seamlessly into standard industrial tooling setups:
- Tool Bodies: Fully compatible with small-diameter indexable U-drills and miniature 90-degree shoulder milling cutters featuring SPMT 0502 insert pockets.
- Machine Tools: Optimized for Swiss-type automatic lathes, CNC miniature machining centers, and high-precision CNC lathes with live tooling.
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 Drilling & 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 small stainless steel U-drilling?
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 shock cracking common when drilling small-diameter holes in 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 SPMT050204 size suitable for micro U-drill bodies?
A: Yes, the 0502 size features a 5.0mm inscribed circle and a 2.38mm thickness, making it ideal for compact, small-diameter indexable U-drills and micro-boring tools requiring high positional stability.
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.