Korloy SP400 PC5300 4mm Single-Ended Universal PVD Parting Insert (10pcs)
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The Original Korloy SP400 PC5300 is a high-performance 4.0mm Single-Ended Parting and Grooving Insert engineered for maximum versatility. Featuring the legendary PC5300 Universal PVD Grade, this insert is the ultimate "problem solver" for workshops that process a mix of Stainless Steel, Carbon Steel, and Cast Iron. The 4.0mm width provides immense structural rigidity, ensuring straight and stable cuts even in deep radial plunging operations.
The All-Material Specialist: PC5300 is designed with a fine-grained carbide substrate and a TiAlN-based PVD coating. This combination offers high toughness against chipping and exceptional heat resistance, making it perfect for interrupted cuts and unstable machining setups.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| Model Code | SP400 |
| Cutting Width (W) | 4.0 mm |
| Grade | PC5300 (Universal PVD) |
| Design | Single-Ended (Deep & Stable Cutting) |
Core Performance Benefits:
- Universal Application: One grade for multiple materials, significantly reducing tool inventory costs.
- Superior Edge Strength: The PC5300 coating is incredibly tough, resisting chipping during interrupted cuts or when machining parts with forged "black skin."
- Enhanced Thermal Stability: Maintains hardness at high temperatures, preventing deformation during long 4mm wide cut-off cycles.
- Chip Control: The SP-style geometry narrows the chip for smooth evacuation, preventing clogging in deep slots.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.08 - 0.18 mm/rev |
| Carbon/Alloy Steel | 90 - 170 m/min | 0.10 - 0.22 mm/rev |
| High-Temp Alloys | 30 - 70 m/min | 0.05 - 0.12 mm/rev |
Compatible Tool Holders:
Ensure maximum rigidity by pairing with professional 4.0mm systems:
- Heavy-Duty Blades: SPB 32-4 / SPB 26-4
- Integrated Shank Tools: NCIH 25-4 / NCIH 32-4
- Mounting Blocks: SMBB 2532 / 3232 Series
Machinist Tip: Why choose SP400 PC5300?
Understanding the Korloy PVD Grade difference:
Safety and Versatility. If you switch between steel and stainless steel frequently, or if your machine has vibration, PC5300 is the most "forgiving" grade. It prevents sudden breakage better than any other grade.
Stainless Focus. Choose PC9030 only if you are processing 100% stainless steel in stable conditions. It is slightly sharper but more brittle than PC5300.
Pro Advice: For 4mm wide parting, rigidity is paramount. Use the shortest possible blade overhang. If you encounter vibration (chatter), PC5300’s shock-resistant substrate will often be the key to finishing the job without destroying the tool.
Packaging: 10 pieces per box.
Korloy SP400 PC5300 technical specifications, 4mm universal grooving insert for CNC, best parting insert for unstable conditions, PC5300 cutting speeds for stainless steel, Korloy 4.0mm parting insert for alloy steel
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.