Korloy SP200 NC3120 2mm Single-Ended Universal Steel Parting Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
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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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.