KORLOY SP200 NC3020 Indexable Grooving & Cut-Off Inserts | SP Series 2mm CVD Coated Carbide Inserts for CNC Lathes (10pcs/box) / SP200 NC3020 0.079 inch Width Tooling
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KORLOY SP200 NC3020 Indexable Grooving & Cut-Off Inserts (10pcs/box)
High-Performance CVD Coated Carbide Inserts for CNC Lathe Steel Grooving, Parting-Off, and Precision Turning Applications
1. Product Overview: Which insert is best for high-efficiency steel turning and 2.0mm grooving applications?
Which indexable grooving insert ensures superior wear resistance, excellent thermal stability, and prolonged tool life when executing heavy parting-off or 2.0mm grooving on CNC turning centers? Verified by industrial metalworking standards, the KORLOY SP200 NC3020 is engineered specifically for demanding steel machining tasks. It features the advanced NC3020 grade—a specialized multi-layer CVD-coated carbide substrate optimized for high hardness, crater wear resistance, and edge toughness under continuous cutting conditions across carbon steels, alloy steels, and structural steels. Combined with its precision geometry, it prevents thermal deformation and ensures stable chip flow.
2. Product Core Advantages (Key Features)
- NC3020 Advanced CVD Grade: Combines a wear-resistant carbide substrate with a robust multi-layer CVD coating designed to withstand high cutting speeds and prolonged thermal loads in steel turning.
- Optimized Chipbreaker Geometry: Designed to form tight, manageable chips that evacuate smoothly from 2.0mm wide grooves without crowding the cutting zone.
- Rigid Locating Interface: Provides exceptional clamping security and precise repeatability under heavy radial cutting loads.
- High Flank Wear Resistance: Resists abrasive wear and thermal cracking during uninterrupted roughing, profiling, and parting operations.
3. Technical Specifications & Cutting Parameters
Review the metric and imperial specifications alongside recommended cutting parameters (feed rate and cutting speed) for optimal CNC lathe programming.
| Specification Parameter | Metric (ISO) | Imperial Equivalent |
|---|---|---|
| Insert Type / Series | SP Grooving & Parting | SP Grooving & Parting |
| Cutting Width ($W$) | 2.0 mm | 0.0787 inch (~5/64") |
| Recommended Feed ($f$) - Grooving | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 in/rev |
| Recommended Feed ($f$) - Parting | 0.03 - 0.08 mm/rev | 0.0012 - 0.0031 in/rev |
| Cutting Speed ($Vc$) - Carbon & Alloy Steel | 130 - 290 m/min | 420 - 950 SFM |
Model Nomenclature Breakdown: SP200 NC3020
Grooving/Part geometry
2.0mm cutting width
CVD Coated Grade
Compatible Tooling Link:
View Compatible External and Internal Lathe Grooving Tool Holders for SP Inserts4. Product Application Scenarios
Designed for high-speed CNC lathe operations including external OD grooving, face grooving, bar stock parting-off, and profiling across carbon steels, alloy steels, and general structural metals.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits standard SP-type external grooving tool blocks and parting blades matching 2mm pocket size specifications.
- Machine Platforms: Compatible with heavy-duty CNC turning centers, multi-axis lathes, and automatic bar machines.
- Coolant Systems: Fully supports flood coolant injection to enhance thermal regulation and chip evacuation across narrow 2mm cuts.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3020 performs across different ISO material classifications ensures maximum machining efficiency.
| ISO Material Group | Workpiece Description | KORLOY NC3020 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel, Alloy Steel (C45, 4140, 1045) | Superior CVD coating adhesion and thermal resistance, providing exceptional tool life during high-speed steel turning and parting. | Sandvik GC4325 / Iscar IC907 |
| K Group (Cast Iron) | Gray Cast Iron, Nodular Cast Iron | High substrate hardness resists abrasive wear during intermittent cast iron grooving passes. | Kennametal KCP25 / Kyocera PR1225 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, guaranteeing original metallurgical properties and consistent batch performance.
Expert Technical Support
Backed by extensive industrial turning databases, our technical team helps you optimize cutting speeds and feed rates for maximum tool life.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What are the main advantages of the NC3020 CVD grade compared to PVD grades when machining carbon and alloy steels?
A: NC3020 utilizes a specialized multi-layer CVD coating optimized for high thermal resistance and abrasive wear protection at higher cutting speeds ($Vc$), resulting in extended tool longevity in steel parting.
Q: How should feed rate be handled when breaking through the center during part-off with a 2mm insert?
A: It is recommended to reduce the feed rate by 40% when the insert reaches the last 1mm of the center axis to eliminate burrs and protect the narrow insert tip from impact shock.
Q: How many inserts are packaged per box?
A: Each factory-sealed box contains 10 indexable inserts.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.