Korloy SPMT07T208-PD PC5300 Universal PVD Insert for Stainless Steel (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SPMT07T208-PD PC5300 is a high-performance Universal Square Indexable Insert, precision-engineered for medium-to-large Indexable U-Drills and heavy milling cutters. Featuring Korloy's advanced PC5300 PVD Grade, this insert combines a high-toughness carbide substrate with a specialized TiAlN-based coating. It is the definitive solution for Stainless Steel (M-Group) and Heat-Resistant Alloys (S-Group), providing exceptional reliability where edge strength is the top priority.
The Impact Specialist: In indexable drilling, the inner insert must withstand heavy crushing forces due to low cutting speeds near the center. PC5300’s extreme toughness makes it the perfect inner insert to prevent the chipping and sudden fractures that often plague standard CVD grades.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Designation | SPMT07T208-PD |
| Corner Radius (r) | 0.8 mm (High Strength) |
| Grade | PC5300 (Premium Universal PVD) |
| Target Materials | Stainless Steel, Alloy Steel, Cast Iron, Titanium |
Core Performance Benefits:
- Extreme Toughness: PVD coating provides a sharper and more impact-resistant edge than CVD, essential for interrupted cuts and center drilling.
- Versatile Application: One grade handles Stainless, Steel, and Cast Iron, simplifying tool management and reducing inventory.
- Reduced Tool Pressure: The sharp "PD" chipbreaker geometry lowers axial forces, which is critical for maintaining hole straightness in deep-hole drilling.
- Heat Resistance: The TiAlN coating effectively prevents Built-Up Edge (BUE) in gummy materials like 316 Stainless Steel.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn/fz) |
|---|---|---|
| Stainless Steel (304/316) | 60 - 130 m/min | 0.07 - 0.16 mm/rev |
| Alloy Steel (HB180-280) | 90 - 180 m/min | 0.08 - 0.18 mm/rev |
| Inconel / Titanium | 20 - 50 m/min | 0.05 - 0.12 mm/rev |
Compatible Tooling Systems:
Precision-matched for the following high-performance tools:
- King Drill Series: Diameter 27.5mm - 33.5mm Range
- Indexable Milling Cutters: SPMT 07T2 Face Mills & End Mills
Machinist Tip: Scaling Up Your Drilling Stability
Why PC5300 is the secret to longer tool life in SPMT07 pockets:
Best for Inner Pockets. At the center of a 30mm drill, speed is zero. PVD grades have higher edge toughness to "push" through the material without fracturing. Essential for Stainless Steel.
Best for Steel Outer Pockets. Use this on the outer edge when drilling Carbon Steel at high RPM to withstand the extreme heat generated by the peripheral speed.
Pro Advice: If you're drilling 316 Stainless Steel, use PC5300 for BOTH the inner and outer pockets. Ensure your coolant pressure is at least 20 bar to prevent the gummy chips from re-cutting and damaging the insert edges.
Packaging: 10 pieces per box.
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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.