orloy SP500 NC3020 5mm Single-Ended Parting & Heavy Grooving Insert (10pcs)
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The Original Korloy SP500 NC3030 is the most robust 5.0mm Single-Ended Parting and Grooving Insert in the SP series. Specifically engineered for Extra-Large Diameter steel bars and the most demanding Heavy-Duty Applications, the NC3030 Grade offers unparalleled toughness. If you are struggling with tool breakage on large-scale CNC lathes or dealing with high-frequency interruptions in tough alloy steels, the SP500 NC3030 is your ultimate solution for process security.
Built for the Extremes: The 5.0mm width combined with a single-ended design provides a massive foundation that prevents insert deflection during deep radial plunging. NC3030 is the most impact-resistant CVD grade, making it nearly "bulletproof" against chipping and shattering in unstable conditions.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| Model Code | SP500 |
| Cutting Width (W) | 5.0 mm (+/- 0.1mm) |
| Grade | NC3030 (Maximum Impact Resistance) |
| Coating | Thick Al2O3 + TiCN CVD Layer |
Core Performance Benefits:
- Maximum Edge Integrity: The 5mm profile handles enormous radial forces without snapping, ideal for parting off solid bars over 100mm in diameter.
- Superior Anti-Chipping: NC3030 substrate is optimized to absorb vibration and survive heavy interruptions, even in scaly or oxidized material.
- Aggressive Chip Control: Specialized chipbreaker geometry handles the massive 5mm wide chips, curling them tightly to prevent "bird-nesting" in deep grooves.
- Process Reliability: Reduces machine downtime by providing a predictable and stable tool life in unpredictable cutting environments.
Recommended Cutting Parameters (Heavy Duty):
| Condition | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Large Carbon Steel Bars | 80 - 150 m/min | 0.12 - 0.28 mm/rev |
| Heavy Alloy Steel (Interrupted) | 60 - 110 m/min | 0.10 - 0.22 mm/rev |
| Deep Slotting / Roughing | 50 - 100 m/min | 0.08 - 0.18 mm/rev |
Compatible Tool Holders:
Must be paired with high-capacity heavy-duty parting systems:
- Extra-Large Blades: SPB 32-5 / SPB 45-5 Heavy Duty Blades
- Rigid Tool Blocks: SMBB 3232 / 4032 Heavy Blocks
Machinist Tip: Why SP500 NC3030 is the "Rescue" Insert
When standard 3mm or 4mm inserts keep failing:
Safety First. 5mm parting generates massive heat and force. NC3030 is designed to prevent the tip from "exploding" during the cut, which is critical when machining expensive, large-diameter parts.
High Feed Rate. If you have a brand-new, high-rigidity machine and are cutting standard round bars, NC3020 can handle higher speeds, but it won't survive the impacts that NC3030 can.
Pro Advice: For a 5mm width insert, machine rigidity is non-negotiable. Ensure the blade overhang is minimized to the exact depth needed. If you encounter chatter, NC3030's vibration dampening substrate is your best line of defense.
Packaging: 10 pieces per box.
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