KORLOY SP400 NC3030 Indexable Grooving & Cut-Off Inserts | SP Series 4mm Carbide Grooving Inserts for CNC Lathes (10pcs/box) / SP400 NC3030 0.157 inch Width Tooling
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
KORLOY SP400 NC3030 Indexable Grooving & Cut-Off Inserts (10pcs/box)
High-Performance CVD Coated Carbide Inserts for CNC Lathe Grooving, Parting-Off, and Precision Turning Applications
1. Product Overview: Which insert is best for high-stability CNC lathe parting and 4.0mm grooving applications?
Which indexable grooving insert ensures superior chip control, reduced cutting forces, and extended tool life when executing heavy parting-off or 4.0mm grooving on CNC turning centers? Verified by industrial metalworking standards, the KORLOY SP400 NC3030 is engineered specifically for demanding lathe tasks. It features the advanced NC3030 grade—a specialized multi-layer CVD-coated carbide substrate optimized for high wear resistance, thermal stability, and edge toughness under continuous machining conditions across carbon steels, alloy steels, and general structural metals. Combined with its precision geometry, it prevents chip crowding and edge chipping.
2. Product Core Advantages (Key Features)
- NC3030 Advanced CVD Grade: Combines a tough 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 4.0mm wide grooves without scratching workpiece sidewalls.
- Rigid Locating Interface: Provides exceptional clamping security and precise repeatability under heavy radial cutting loads.
- High Edge Toughness: Resists thermal cracking and flank wear 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 ($W$) | 4.0 mm | 0.1575 inch (~5/32") |
| Recommended Feed ($f$) - Grooving | 0.06 - 0.14 mm/rev | 0.0024 - 0.0055 in/rev |
| Recommended Feed ($f$) - Parting | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 in/rev |
| Cutting Speed ($Vc$) - Steel | 110 - 250 m/min | 360 - 820 SFM |
Model Nomenclature Breakdown: SP400 NC3030
Grooving/Part geometry
4.0mm 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 profile turning across carbon steels, alloy steels, and general machine components.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits standard SP-type external grooving tool blocks and parting blades matching 4mm 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 chip evacuation across wide 4mm cuts.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3030 performs across different ISO material classifications ensures maximum machining efficiency.
| ISO Material Group | Workpiece Description | KORLOY NC3030 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel, Alloy Steel (C45, 4140) | Outstanding resistance to thermal wear and deformation during continuous high-speed steel turning and parting. | Sandvik GC4325 / Iscar IC830 |
| K Group (Cast Iron) | Gray Cast Iron, Ductile Iron | Provides strong baseline substrate resistance against abrasive wear in high-speed cast iron grooving. | Mitsubishi MC5015 / 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 primary benefits of the NC3030 grade in high-speed steel parting operations?
A: NC3030 features a specialized thick CVD coating optimized for thermal barrier protection and wear resistance, allowing higher cutting speeds and extended tool life in carbon and alloy steels.
Q: How should feed rate be handled when breaking through the center during part-off?
A: It is recommended to reduce the feed rate by 40% when the insert reaches the last 1-2mm of the center axis to eliminate burrs and protect the 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.