Korloy SP200 NC3120 2mm Single-Ended Universal Steel Parting Insert (10pcs)
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The Original Korloy SP200 NC3120 is the ultimate 2.0mm Single-Ended Universal Steel Parting Insert. Specifically developed to bridge the gap between high speed and heavy impact, the NC3120 Universal Grade provides a versatile solution for all Carbon and Alloy Steel groups. This 2.0mm width insert is perfect for minimizing material waste while maintaining enough structural integrity for deep parting and medium-duty grooving on CNC turning centers.
The All-Rounder: NC3120 is designed to reduce your inventory. It is tough enough to handle interrupted cuts and stable enough for high-speed continuous work. If you need one insert that can "do it all" in steel, the SP200 NC3120 is the professional's choice.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| Insert Style | Single-Ended (Rigid Support) |
| Cutting Width (W) | 2.0 mm |
| Grade | NC3120 (General Purpose CVD for Steel) |
| Surface Treatment | Golden CVD (TiCN + Al2O3 + TiN) |
Core Performance Benefits:
- Optimized Balance: NC3120 offers higher wear resistance than NC3030 and better toughness than NC3020, making it reliable across a wide range of Vc speeds.
- Stable Clamping: The single-ended SP series design fits deep into the holder seat, preventing "pull-out" or vibration during narrow 2mm grooves.
- Enhanced Chip Breaker: Specifically tuned for 2.0mm chips, ensuring they curl and break quickly to prevent scratches on the side walls.
- Process Security: Highly predictable tool life, making it ideal for automated production runs where consistent performance is key.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| General Steel (1045/4140) | 100 - 180 m/min | 0.04 - 0.14 mm/rev |
| Low Carbon Steel | 120 - 200 m/min | 0.05 - 0.15 mm/rev |
| Interrupted Cutting | 80 - 130 m/min | 0.03 - 0.10 mm/rev |
Compatible Tool Holders:
Ensure maximum stability by pairing with Korloy-standard parting systems:
- Parting Blades: SPB 26-2 / SPB 32-2
- Blade Blocks: SMBB 1626 / 2026 / 2526
Machinist Tip: The Steel Grade Comparison
Korloy offers three main CVD grades for the SP series. Here is how they compare:
The Generalist. Use this as your starting point for any steel job. It handles most conditions with ease and offers the most stable performance across varying machines.
High Wear Resistance. Best for high-speed continuous parting in clean round bars. Choose this to lower cycle times in stable setups.
High Toughness. Best for heavy interruptions (hex bars) or very old, vibrating machines. It prevents the insert from snapping.
Pro Advice: If you aren't sure which grade to pick, start with NC3120. It provides a massive "safe zone" for most CNC turning operations.
Packaging: 10 pieces per box.
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