Korloy CCMT09T302-HMP NC3120 Precision Steel Finishing Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CCMT09T302-HMP NC3120 is a high-precision turning insert specifically designed for fine finishing of steel workpieces. Featuring a sharp 0.2mm nose radius and the versatile NC3120 grade, this insert excels at maintaining tight tolerances and producing superior surface finishes while offering a stable tool life across various steel alloys.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT09T302-HMP |
| Grade | NC3120 (Universal Balance Grade) |
| Nose Radius | 0.2 mm (Ultra-Fine Finishing) |
| Primary Application | High Precision Finishing, Small Diameters |
Core Performance Benefits:
- Exceptional Surface Finish: The R0.2 small radius minimizes cutting resistance, significantly reducing vibration and improving surface smoothness.
- Universal Versatility: The NC3120 grade provides a perfect balance of wear resistance and toughness, making it suitable for a wide range of steel types and cutting conditions.
- Superior Dimensional Control: Sharp cutting edges allow for precise machining of small features and tight-tolerance parts.
- Advanced HMP Chipbreaker: Designed for stable chip control even at very low depths of cut (ap), ensuring a clean cutting process.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (HB180-280) | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.5 mm |
| Alloy Steel (HB280-350) | 120 - 280 m/min | 0.04 - 0.12 mm/rev | 0.1 - 1.2 mm |
Compatible Tool Holders:
For high-precision boring and turning, pair this CCMT 09 insert with standard SCLCR/L type holders:
- External Turning: SCLCR1212H09 / SCLCR1616H09 / SCLCR2020K09
- Boring Bars (Internal): S12M-SCLCR09 / S16Q-SCLCR09
Quick Guide: Korloy Steel Grade Selection
Which NC grade is best for your application?
Ideal for high-speed continuous cutting in stable conditions.
The perfect all-rounder (this model). Balanced toughness and wear resistance.
Best for heavy interrupted cuts and unstable setups.
Pro Tip: For the best surface finish, use this R0.2 insert with a light feed rate (f ≤ 0.1mm/rev).
Packaging: 10 pieces per box.
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.