Korloy SPMT15M510-PD PC3500 Ultra-Heavy Duty U-Drill Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SPMT15M510-PD PC3500 is the "King of Power" in the Square Indexable Insert lineup. Specifically engineered for Ultra-Large Indexable Drills and heavy-duty milling cutters, this 15mm insert is designed to tackle the most demanding metal removal tasks. The PC3500 Grade, featuring Korloy's advanced multi-layer CVD coating, provides the extreme heat resistance and edge stability needed for High-Speed Steel (P-Group) Machining in heavy industrial sectors.
Maximum Metal Removal: For drilling operations exceeding 60mm in diameter, standard inserts simply can't handle the heat. The SPMT15M5 series offers massive cross-sectional strength, ensuring that even under extreme torque, the cutting edge remains precise and productive.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Designation | SPMT15M510-PD |
| Corner Radius (r) | 1.0 mm (Extreme Strength) |
| Thickness | 5.56 mm (Ultra-Thick) |
| Grade | PC3500 (CVD Multi-Layer for Steel) |
Core Performance Benefits:
- Unmatched Edge Rigidity: The M5 (5.56mm) thickness prevents fracturing under the immense axial forces of large-diameter drilling.
- Red Hardness: The CVD Al2O3 layer maintains high hardness even at 1000°C+, preventing deformation at high surface speeds.
- Heavy-Duty PD Chipbreaker: Specifically designed to handle the wide and thick chips produced by 15mm inserts, ensuring efficient evacuation.
- Superior Wear Resistance: Ideal for machining abrasive materials like cast steel and forged alloy steels used in the energy and mining sectors.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn/fz) |
|---|---|---|
| Carbon/Structural Steel | 150 - 280 m/min | 0.12 - 0.28 mm/rev |
| Alloy Steel (4140/SCM440) | 110 - 210 m/min | 0.10 - 0.22 mm/rev |
| Heavy Steel Forgings | 80 - 150 m/min | 0.08 - 0.18 mm/rev |
Compatible Heavy-Duty Systems:
Due to its size, this insert requires high-torque tool bodies:
- Extra-Large U-Drills: King Drill (60mm - 80mm+ Diameter)
- Heavy Facing Mills: Modular Face Milling Heads for SPMT15
Machinist Tip: The Giant of Hole Making
Optimizing the SPMT15M510 for ultra-heavy cycles:
High Vc Protection. On large drills, the outer diameter travels at significant speeds. PC3500's CVD coating is essential to prevent the "burn-out" that happens to PVD grades when they reach these critical temperatures.
Zero Deflection. The 5.56mm thickness is designed for high-horsepower machines. It provides the mechanical strength needed to hold the drill straight and true in deep 3D or 4D hole applications.
Pro Advice: For 80mm holes, coolant pressure is no longer just for cooling—it's for chip management. Ensure your pump can handle high volume to flush out the substantial chips that a 15mm insert produces at 0.25mm/rev.
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.