Korloy DNMG150608-HM NC3020 Heavy-Duty Steel Turning Insert, R0.8 (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy DNMG150608-HM NC3020 (ANSI Standard: DNMG 442) is a high-performance 55° diamond turning insert built for heavy-duty semi-finishing and medium turning of Steel (P). At 6.35mm thick, this insert provides unrivaled mechanical strength and heat absorption compared to the standard 1504 series. The NC3020 CVD grade features a sophisticated multi-layer coating designed to withstand extreme temperatures and resist crater wear during high-speed, continuous cutting on large diameter workpieces.
Engineered for Stability: The DNMG 442 (150608) is specifically designed for environments where standard inserts fail due to heat or vibration. Its increased mass and R0.8 radius allow for aggressive feed rates and longer cut times without losing edge integrity.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150608-HM |
| ANSI Code | DNMG 442 |
| Grade | NC3020 (Premium CVD for Steel) |
| Thickness | 6.35 mm (Industrial Duty) |
Core Performance Benefits:
- Maximum Edge Security: The combination of a 6.35mm body and 0.8mm radius makes this insert almost impervious to thermal cracking and mechanical fracture.
- High-Speed Productivity: NC3020's Al2O3 coating allows for elevated surface speeds, significantly reducing cycle times in large-scale production.
- HM Universal Chipbreaker: Provides reliable chip breaking across a wide range of feed rates and depths of cut.
- Four Cutting Edges: Negative geometry ensures cost-efficiency by providing 4 usable edges for heavy turning.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon Steel (S45C/1045) | 200 - 350 m/min | 0.15 - 0.45 mm/rev | 1.0 - 5.0 mm |
| Alloy Steel (4140/SCM440) | 150 - 280 m/min | 0.12 - 0.38 mm/rev | 0.8 - 4.5 mm |
| Tool Steel / Die Steel | 120 - 200 m/min | 0.10 - 0.30 mm/rev | 0.5 - 3.5 mm |
Compatible Tool Holders:
Requires heavy-duty holders compatible with 1506 (6.35mm thick) pockets:
- External Turning: DDJNR/L 2525M15 / 3232P15
- Large Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
Machinist's Choice: DNMG 150608 vs. 150408
Why step up to the 1506 (6.35mm) series?
Best for High-Power & Heavy Cuts. The extra thickness allows for better heat dissipation during long cycles. If you find your 1504 inserts are deforming or snapping under heavy loads, the 1506 is the solution.
The General Workshop Standard. Suitable for light-to-medium machines where cutting forces are lower. It’s more economical for daily tasks that don't push the tool to its thermal limits.
Pro Tip: When using the 150608 NC3020, use a high-pressure coolant system if available. The 0.8 radius and extra thickness are built to handle high energy, and cooling will extend your tool life by another 30%.
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.