Korloy CCMT09T308-HMP NC3120 Universal Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CCMT09T304-HMP NC3120 is the premier "All-Rounder" solution for steel turning applications. Engineered as a balanced grade, the NC3120 sits perfectly between high-wear resistance and impact toughness. This makes it the most versatile insert in your toolbox, capable of handling continuous cuts as well as light interrupted machining across a wide variety of steel alloys.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT09T308-HMP |
| Grade | NC3120 (Universal Balance Grade) |
| Nose Radius | 0.8 mm (High Edge Strength) |
| Chipbreaker | HMP (Medium-Duty Performance) |
Core Performance Benefits:
- Universal Efficiency: The NC3120 grade eliminates the need for constant tool changes by performing reliably across stable and semi-stable steel turning tasks.
- Enhanced Edge Strength: The 0.8mm nose radius provides a robust cutting edge, allowing for higher feed rates and deeper cuts without risking premature chipping.
- Optimized CVD Coating: A specialized coating layer provides superior thermal resistance, ensuring consistent tool life in medium-to-high speed operations.
- Excellent Surface & Feed Balance: Designed to provide a stable surface finish even when pushing for higher metal removal rates (MRR).
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (HB180-280) | 150 - 320 m/min | 0.15 - 0.40 mm/rev | 0.8 - 4.0 mm |
| Alloy Steel (HB280-350) | 120 - 250 m/min | 0.12 - 0.35 mm/rev | 0.8 - 3.5 mm |
Compatible Tool Holders:
To leverage the strength of the R0.8 radius, pair this insert with standard SCLCR/L tool holders (Size 09):
- External Turning: SCLCR1212H09 / SCLCR1616H09 / SCLCR2020K09
- Boring Bars (Internal): S16Q-SCLCR09 / S20R-SCLCR09
Quick Guide: Korloy Steel Grade Selection
Which NC grade fits your CNC setup?
Best for high-speed, continuous cutting in very rigid machines.
The perfect balance. Reliable for most steel turning applications.
Best for heavy interrupted cuts and shaky/unstable conditions.
Machinist's Tip: This R0.8 version of the NC3120 is excellent for roughing passes where you need to remove material quickly but still want the flexibility of a universal grade.
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.