Korloy FGD300R-03 NC3030 3mm Single-Ended Grooving & Parting Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy FGD300R-03 NC3030 is a premium Single-Ended Parting and Grooving Insert engineered for stability and impact resistance in Steel (P) machining. The single-ended design offers a significantly larger seating area compared to double-ended inserts, making it the most reliable choice for Deep Grooving and Large Diameter Parting-off where vibration control is critical. Featuring the NC3030 CVD coating, this insert is optimized for tough conditions, including interrupted cuts and variable surface speeds.
Built for Toughness: If you are dealing with rough surfaces or heavy interrupted cuts in carbon and alloy steels, the NC3030 grade is your solution. It provides an extra layer of shock resistance that prevents micro-chipping, ensuring your process remains stable and predictable.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | FGD300R-03 |
| Insert Design | Single-Ended (High Stability) |
| Width (w) | 3.0 mm |
| Grade | NC3030 (Heavy-Duty CVD for Steel) |
Core Performance Benefits:
- Enhanced Rigidity: The FGD single-end architecture provides maximum support under the cutting edge, preventing "walking" during deep grooving.
- Shock-Resistant Grade: NC3030 coating is specifically designed to handle the impact of interrupted cutting and vibrations on older CNC machines.
- Efficient Chip Disposal: Advanced chipbreaker geometry curls and narrows chips, preventing them from marring the groove side-walls.
- Wide Application: Reliable in a wide range of steels, from mild carbon steel to tough chromium-molybdenum alloys.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Mild Steel (Low Carbon) | 120 - 220 m/min | 0.08 - 0.18 mm/rev |
| Alloy Steel (4140/SCM440) | 100 - 180 m/min | 0.05 - 0.15 mm/rev |
| Steel Forgings / Castings | 80 - 150 m/min | 0.05 - 0.12 mm/rev |
Compatible Tool Holders:
Must be used with Korloy FGD-compatible grooving holders:
- External Grooving Holders: FGDR / FGDR 2020-3 / 2525-3
Steel Grooving Guide: NC3030 vs. NC3020
Korloy offers two main CVD grades for steel grooving. Here is when to use each:
The Toughness Specialist. Use this for interrupted cutting, unstable setups, or when machining forged steel with hard spots. It excels at preventing edge chipping.
Best for Continuous Cutting and high-speed CNC turning. It offers higher wear resistance for long, smooth grooving passes in clean steel.
Machinist's Pro Tip: For large diameter parting, always use the FGD single-end. As the tool moves toward the center, the cutting speed drops to zero—NC3030's extra toughness helps prevent the tip from snapping during this critical phase.
Packaging: 10 pieces per box.
Korloy FGD300R-03 NC3030 price, 3mm parting insert for interrupted cut, deep grooving tool for alloy steel, NC3030 vs NC3020 grooving grade, single ended parting tool for CNC lathe
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.