Korloy DNMG150608-HM NC3120 Heavy-Duty Thick Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy DNMG150608-HM NC3120 (ANSI Standard: DNMG 442) is a high-rigidity 55° diamond turning insert designed for maximum reliability in medium-duty steel machining. With an increased thickness of 6.35mm and a robust 0.8mm nose radius, this insert offers unparalleled mechanical strength and heat absorption. The NC3120 universal grade provides a balanced combination of wear resistance and toughness, making it the perfect choice for varying steel materials and unpredictable cutting conditions.
Maximum Stability: The DNMG 1506 series is significantly more robust than the standard 1504 series. This 6.35mm thick insert is ideal for large-scale production where tool failure must be avoided at all costs, even when facing light interruptions or scale.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150608-HM |
| ANSI Code | DNMG 442 |
| Grade | NC3120 (Universal CVD for Steel) |
| Thickness | 6.35 mm (Industrial High-Strength) |
Core Performance Benefits:
- Extreme Heat Dissipation: The thicker carbide body handles higher thermal loads during long, continuous turning passes.
- Durable R0.8 Edge: Specifically designed for semi-finishing and medium turning, allowing for higher feed rates and stable chip breaking.
- NC3120 Universal Technology: A versatile CVD coating that resists both high-speed wear and impact chipping.
- Secure 4-Edge Design: Double-sided negative geometry provides 4 usable edges for cost-effective heavy turning.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (1045 / S45C) | 150 - 300 m/min | 0.15 - 0.45 mm/rev | 1.0 - 5.0 mm |
| Alloy Steel (4140 / SCM440) | 120 - 240 m/min | 0.12 - 0.38 mm/rev | 0.8 - 4.5 mm |
| Rough Forged Steel (With Scale) | 100 - 180 m/min | 0.15 - 0.40 mm/rev | 1.0 - 5.0 mm |
Compatible Tool Holders:
Requires heavy-duty holders compatible with 1506 (6.35mm thick) pockets:
- External Turning: DDJNR/L 2525M15 / 3232P15
- Large Internal Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
Choosing the Right 1506 Grade
NC3120 vs. NC3030 for heavy-duty DNMG 150608:
Best for General Reliability. This is the grade you should stock for everyday heavy-duty steel turning. It handles most materials efficiently with a high safety margin.
Best for Extreme Impact. If you are machining parts with deep keyways or extremely heavy scale on old, loose machines, step up to NC3030 to prevent edge snapping.
Machinist's Insight: The DNMG 150608 NC3120 is your "Peace of Mind" tool. When you are starting a new job on a large workpiece and aren't sure how the material will behave, this is the safest and most efficient insert to load.
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.